{
  "title": "Word Problems (Perimeter and Area) - Grade 7 CBSE",
  "total_questions": 150,
  "questions": [
    {"id": 1, "difficulty": "easy", "question": "A square garden has side 12 m. What is its perimeter?", "options": {"A": "24 m", "B": "36 m", "C": "48 m", "D": "144 m"}, "correct_answer": "C"},
    {"id": 2, "difficulty": "easy", "question": "A rectangular field is 50 m long and 30 m wide. What is its area?", "options": {"A": "80 m²", "B": "150 m²", "C": "1500 m²", "D": "3000 m²"}, "correct_answer": "C"},
    {"id": 3, "difficulty": "easy", "question": "A triangle has base 8 cm and height 5 cm. What is its area?", "options": {"A": "13 cm²", "B": "20 cm²", "C": "40 cm²", "D": "80 cm²"}, "correct_answer": "B"},
    {"id": 4, "difficulty": "easy", "question": "A square has perimeter 36 cm. What is its side length?", "options": {"A": "6 cm", "B": "9 cm", "C": "12 cm", "D": "18 cm"}, "correct_answer": "B"},
    {"id": 5, "difficulty": "easy", "question": "A rectangle has length 15 cm and width 10 cm. What is its perimeter?", "options": {"A": "25 cm", "B": "50 cm", "C": "100 cm", "D": "150 cm"}, "correct_answer": "B"},
    {"id": 6, "difficulty": "easy", "question": "A parallelogram has base 12 cm and height 7 cm. What is its area?", "options": {"A": "19 cm²", "B": "38 cm²", "C": "84 cm²", "D": "168 cm²"}, "correct_answer": "C"},
    {"id": 7, "difficulty": "easy", "question": "A square room has side 5 m. How much carpet is needed to cover floor?", "options": {"A": "10 m²", "B": "20 m²", "C": "25 m²", "D": "30 m²"}, "correct_answer": "C"},
    {"id": 8, "difficulty": "easy", "question": "A rectangular park is 80 m long and 60 m wide. What is its perimeter?", "options": {"A": "140 m", "B": "280 m", "C": "4800 m", "D": "560 m"}, "correct_answer": "B"},
    {"id": 9, "difficulty": "easy", "question": "A triangle area is 24 cm², base is 8 cm. What is height?", "options": {"A": "3 cm", "B": "6 cm", "C": "12 cm", "D": "24 cm"}, "correct_answer": "B"},
    {"id": 10, "difficulty": "easy", "question": "A square has area 49 cm². What is its perimeter?", "options": {"A": "7 cm", "B": "14 cm", "C": "28 cm", "D": "49 cm"}, "correct_answer": "C"},
    {"id": 11, "difficulty": "easy", "question": "A rectangle has perimeter 30 cm and length 9 cm. What is width?", "options": {"A": "6 cm", "B": "7 cm", "C": "8 cm", "D": "9 cm"}, "correct_answer": "A"},
    {"id": 12, "difficulty": "easy", "question": "A parallelogram area is 45 cm², height 5 cm. What is base?", "options": {"A": "9 cm", "B": "10 cm", "C": "15 cm", "D": "20 cm"}, "correct_answer": "A"},
    {"id": 13, "difficulty": "easy", "question": "A square tile has side 20 cm. How many tiles needed for 1 m² area?", "options": {"A": "5", "B": "10", "C": "20", "D": "25"}, "correct_answer": "D"},
    {"id": 14, "difficulty": "easy", "question": "A rectangular field area is 240 m², width 12 m. What is length?", "options": {"A": "10 m", "B": "20 m", "C": "30 m", "D": "40 m"}, "correct_answer": "B"},
    {"id": 15, "difficulty": "easy", "question": "A triangle has base 10 cm, height 8 cm. What is area?", "options": {"A": "18 cm²", "B": "40 cm²", "C": "80 cm²", "D": "160 cm²"}, "correct_answer": "B"},
    {"id": 16, "difficulty": "easy", "question": "A square has perimeter 60 m. What is area?", "options": {"A": "15 m²", "B": "225 m²", "C": "900 m²", "D": "3600 m²"}, "correct_answer": "B"},
    {"id": 17, "difficulty": "easy", "question": "A rectangle has length 25 cm, width 15 cm. What is area?", "options": {"A": "40 cm²", "B": "80 cm²", "C": "375 cm²", "D": "750 cm²"}, "correct_answer": "C"},
    {"id": 18, "difficulty": "easy", "question": "A parallelogram has base 18 cm, area 126 cm². What is height?", "options": {"A": "6 cm", "B": "7 cm", "C": "8 cm", "D": "9 cm"}, "correct_answer": "B"},
    {"id": 19, "difficulty": "easy", "question": "A square garden area is 64 m². What is perimeter?", "options": {"A": "8 m", "B": "16 m", "C": "32 m", "D": "64 m"}, "correct_answer": "C"},
    {"id": 20, "difficulty": "easy", "question": "A rectangular hall perimeter is 100 m, length 30 m. What is width?", "options": {"A": "10 m", "B": "20 m", "C": "30 m", "D": "40 m"}, "correct_answer": "B"},
    
    {"id": 21, "difficulty": "medium", "question": "A rectangular field is twice as long as wide. Perimeter is 150 m. What is area?", "options": {"A": "625 m²", "B": "1250 m²", "C": "1875 m²", "D": "2500 m²"}, "correct_answer": "B"},
    {"id": 22, "difficulty": "medium", "question": "A square and rectangle have equal perimeters. Square side is 15 cm. Rectangle length is 18 cm. What is rectangle area?", "options": {"A": "162 cm²", "B": "180 cm²", "C": "198 cm²", "D": "216 cm²"}, "correct_answer": "D"},
    {"id": 23, "difficulty": "medium", "question": "A triangle has area 48 cm². Base is 12 cm. What is height?", "options": {"A": "4 cm", "B": "6 cm", "C": "8 cm", "D": "10 cm"}, "correct_answer": "C"},
    {"id": 24, "difficulty": "medium", "question": "A rectangular park length is 3 times width. Area is 432 m². What is perimeter?", "options": {"A": "72 m", "B": "84 m", "C": "96 m", "D": "108 m"}, "correct_answer": "C"},
    {"id": 25, "difficulty": "medium", "question": "A square area is 144 cm². Equilateral triangle has same perimeter as square. Triangle side is?", "options": {"A": "12 cm", "B": "14 cm", "C": "16 cm", "D": "18 cm"}, "correct_answer": "C"},
    {"id": 26, "difficulty": "medium", "question": "A parallelogram area is 84 cm². Base is 14 cm. What is height?", "options": {"A": "5 cm", "B": "6 cm", "C": "7 cm", "D": "8 cm"}, "correct_answer": "B"},
    {"id": 27, "difficulty": "medium", "question": "A rectangular field perimeter is 240 m. Length is 70 m. What is area?", "options": {"A": "3500 m²", "B": "4200 m²", "C": "4900 m²", "D": "5600 m²"}, "correct_answer": "A"},
    {"id": 28, "difficulty": "medium", "question": "A square and equilateral triangle have equal perimeters. Square side is 12 cm. Triangle area (height ≈ 10.39 cm) is about?", "options": {"A": "62.4 cm²", "B": "83.2 cm²", "C": "124.8 cm²", "D": "166.4 cm²"}, "correct_answer": "A"},
    {"id": 29, "difficulty": "medium", "question": "A rectangle length is 5 cm more than width. Perimeter is 38 cm. What is area?", "options": {"A": "66 cm²", "B": "78 cm²", "C": "84 cm²", "D": "96 cm²"}, "correct_answer": "C"},
    {"id": 30, "difficulty": "medium", "question": "A triangle area is 60 cm². Height is 8 cm. What is base?", "options": {"A": "7.5 cm", "B": "12 cm", "C": "15 cm", "D": "20 cm"}, "correct_answer": "C"},
    {"id": 31, "difficulty": "medium", "question": "A square garden area is 225 m². Path 2 m wide runs inside. Area of path is?", "options": {"A": "44 m²", "B": "84 m²", "C": "164 m²", "D": "224 m²"}, "correct_answer": "B"},
    {"id": 32, "difficulty": "medium", "question": "A rectangular room is 8 m by 6 m. How many square tiles of side 20 cm are needed?", "options": {"A": "120", "B": "600", "C": "1200", "D": "2400"}, "correct_answer": "C"},
    {"id": 33, "difficulty": "medium", "question": "A parallelogram area is 91 cm². Height is 7 cm. What is base?", "options": {"A": "11 cm", "B": "12 cm", "C": "13 cm", "D": "14 cm"}, "correct_answer": "C"},
    {"id": 34, "difficulty": "medium", "question": "A square and rectangle have equal areas. Square side is 14 cm. Rectangle length is 28 cm. Rectangle perimeter is?", "options": {"A": "56 cm", "B": "70 cm", "C": "84 cm", "D": "112 cm"}, "correct_answer": "C"},
    {"id": 35, "difficulty": "medium", "question": "A triangle has base 18 cm, area 81 cm². What is height?", "options": {"A": "4.5 cm", "B": "6 cm", "C": "9 cm", "D": "12 cm"}, "correct_answer": "C"},
    {"id": 36, "difficulty": "medium", "question": "A rectangular field length:width = 4:3. Area is 300 m². Perimeter is?", "options": {"A": "50 m", "B": "60 m", "C": "70 m", "D": "80 m"}, "correct_answer": "C"},
    {"id": 37, "difficulty": "medium", "question": "A square perimeter is 48 cm. Equilateral triangle has same perimeter. Triangle area (height ≈ 6.93 cm) is?", "options": {"A": "27.7 cm²", "B": "41.6 cm²", "C": "55.4 cm²", "D": "69.3 cm²"}, "correct_answer": "A"},
    {"id": 38, "difficulty": "medium", "question": "A parallelogram area is 108 cm². Base is 12 cm. Height is?", "options": {"A": "7 cm", "B": "8 cm", "C": "9 cm", "D": "10 cm"}, "correct_answer": "C"},
    {"id": 39, "difficulty": "medium", "question": "A rectangular park perimeter is 180 m. Length is 50 m. Area is?", "options": {"A": "2000 m²", "B": "2500 m²", "C": "3000 m²", "D": "3500 m²"}, "correct_answer": "A"},
    {"id": 40, "difficulty": "medium", "question": "A square area is 196 cm². Rectangle has same perimeter. Rectangle length is 25 cm. Area is?", "options": {"A": "150 cm²", "B": "200 cm²", "C": "250 cm²", "D": "300 cm²"}, "correct_answer": "D"},
    {"id": 41, "difficulty": "medium", "question": "A triangle area is 42 cm². Height is 7 cm. Base is?", "options": {"A": "6 cm", "B": "8 cm", "C": "10 cm", "D": "12 cm"}, "correct_answer": "D"},
    {"id": 42, "difficulty": "medium", "question": "A rectangular hall is 15 m by 12 m. How many chairs can be placed if each needs 1.5 m² space?", "options": {"A": "80", "B": "100", "C": "120", "D": "150"}, "correct_answer": "C"},
    {"id": 43, "difficulty": "medium", "question": "A parallelogram area is 120 cm². Height is 10 cm. Base is?", "options": {"A": "10 cm", "B": "11 cm", "C": "12 cm", "D": "13 cm"}, "correct_answer": "C"},
    {"id": 44, "difficulty": "medium", "question": "A square and rectangle have equal areas. Square perimeter is 40 cm. Rectangle length is 10 cm. Width is?", "options": {"A": "4 cm", "B": "5 cm", "C": "6 cm", "D": "8 cm"}, "correct_answer": "C"},
    {"id": 45, "difficulty": "medium", "question": "A triangle has base 24 cm, area 96 cm². Height is?", "options": {"A": "4 cm", "B": "6 cm", "C": "8 cm", "D": "12 cm"}, "correct_answer": "C"},
    {"id": 46, "difficulty": "medium", "question": "A rectangular plot length is 3 times width. Perimeter is 160 m. Area is?", "options": {"A": "1200 m²", "B": "1500 m²", "C": "1800 m²", "D": "2400 m²"}, "correct_answer": "A"},
    {"id": 47, "difficulty": "medium", "question": "A square area is 256 cm². Equilateral triangle perimeter equals square perimeter. Triangle side is?", "options": {"A": "16 cm", "B": "18 cm", "C": "20 cm", "D": "24 cm"}, "correct_answer": "A"},
    {"id": 48, "difficulty": "medium", "question": "A parallelogram area is 135 cm². Base is 15 cm. Height is?", "options": {"A": "8 cm", "B": "9 cm", "C": "10 cm", "D": "12 cm"}, "correct_answer": "B"},
    {"id": 49, "difficulty": "medium", "question": "A rectangular field perimeter is 200 m. Length is 60 m. Area is?", "options": {"A": "2400 m²", "B": "3000 m²", "C": "3600 m²", "D": "4200 m²"}, "correct_answer": "A"},
    {"id": 50, "difficulty": "medium", "question": "A square and rectangle have equal perimeters. Square area is 225 cm². Rectangle length is 25 cm. Area is?", "options": {"A": "200 cm²", "B": "225 cm²", "C": "250 cm²", "D": "275 cm²"}, "correct_answer": "A"},
    {"id": 51, "difficulty": "medium", "question": "A triangle area is 54 cm². Base is 12 cm. Height is?", "options": {"A": "4.5 cm", "B": "6 cm", "C": "7.5 cm", "D": "9 cm"}, "correct_answer": "D"},
    {"id": 52, "difficulty": "medium", "question": "A room is 6 m by 4.5 m. How many tiles of 30 cm side are needed?", "options": {"A": "200", "B": "300", "C": "400", "D": "500"}, "correct_answer": "B"},
    {"id": 53, "difficulty": "medium", "question": "A parallelogram area is 156 cm². Height is 12 cm. Base is?", "options": {"A": "11 cm", "B": "12 cm", "C": "13 cm", "D": "14 cm"}, "correct_answer": "C"},
    {"id": 54, "difficulty": "medium", "question": "A square area is 324 cm². Rectangle has same area. Rectangle length is 27 cm. Perimeter is?", "options": {"A": "66 cm", "B": "78 cm", "C": "90 cm", "D": "102 cm"}, "correct_answer": "B"},
    {"id": 55, "difficulty": "medium", "question": "A triangle has base 30 cm, area 120 cm². Height is?", "options": {"A": "4 cm", "B": "6 cm", "C": "8 cm", "D": "10 cm"}, "correct_answer": "C"},
    {"id": 56, "difficulty": "medium", "question": "A rectangular garden length:width = 5:2. Area is 250 m². Perimeter is?", "options": {"A": "50 m", "B": "60 m", "C": "70 m", "D": "80 m"}, "correct_answer": "C"},
    {"id": 57, "difficulty": "medium", "question": "A square perimeter is 60 cm. Equilateral triangle has same perimeter. Triangle area (height ≈ 8.66 cm) is?", "options": {"A": "43.3 cm²", "B": "64.95 cm²", "C": "86.6 cm²", "D": "129.9 cm²"}, "correct_answer": "A"},
    {"id": 58, "difficulty": "medium", "question": "A parallelogram area is 168 cm². Base is 14 cm. Height is?", "options": {"A": "10 cm", "B": "11 cm", "C": "12 cm", "D": "13 cm"}, "correct_answer": "C"},
    {"id": 59, "difficulty": "medium", "question": "A rectangular field perimeter is 160 m. Length is 45 m. Area is?", "options": {"A": "1575 m²", "B": "1800 m²", "C": "2025 m²", "D": "2250 m²"}, "correct_answer": "A"},
    {"id": 60, "difficulty": "medium", "question": "A square area is 400 cm². Rectangle has same perimeter. Rectangle length is 30 cm. Area is?", "options": {"A": "300 cm²", "B": "350 cm²", "C": "400 cm²", "D": "450 cm²"}, "correct_answer": "A"},
    {"id": 61, "difficulty": "medium", "question": "A triangle area is 66 cm². Height is 11 cm. Base is?", "options": {"A": "6 cm", "B": "8 cm", "C": "10 cm", "D": "12 cm"}, "correct_answer": "D"},
    {"id": 62, "difficulty": "medium", "question": "A hall is 18 m by 15 m. How many students can sit if each needs 1.2 m²?", "options": {"A": "180", "B": "200", "C": "225", "D": "250"}, "correct_answer": "C"},
    {"id": 63, "difficulty": "medium", "question": "A parallelogram area is 180 cm². Height is 15 cm. Base is?", "options": {"A": "10 cm", "B": "11 cm", "C": "12 cm", "D": "13 cm"}, "correct_answer": "C"},
    {"id": 64, "difficulty": "medium", "question": "A square and rectangle have equal areas. Square perimeter is 48 cm. Rectangle length is 16 cm. Width is?", "options": {"A": "6 cm", "B": "7 cm", "C": "8 cm", "D": "9 cm"}, "correct_answer": "D"},
    {"id": 65, "difficulty": "medium", "question": "A triangle has base 36 cm, area 144 cm². Height is?", "options": {"A": "4 cm", "B": "6 cm", "C": "8 cm", "D": "12 cm"}, "correct_answer": "C"},
    {"id": 66, "difficulty": "medium", "question": "A rectangular plot length is 4 times width. Perimeter is 200 m. Area is?", "options": {"A": "1600 m²", "B": "2000 m²", "C": "2400 m²", "D": "3200 m²"}, "correct_answer": "A"},
    {"id": 67, "difficulty": "medium", "question": "A square area is 576 cm². Equilateral triangle perimeter equals square perimeter. Triangle area (height ≈ 16.97 cm) is?", "options": {"A": "135.8 cm²", "B": "203.6 cm²", "C": "271.5 cm²", "D": "407.3 cm²"}, "correct_answer": "B"},
    {"id": 68, "difficulty": "medium", "question": "A parallelogram area is 210 cm². Base is 21 cm. Height is?", "options": {"A": "8 cm", "B": "9 cm", "C": "10 cm", "D": "12 cm"}, "correct_answer": "C"},
    {"id": 69, "difficulty": "medium", "question": "A rectangular field perimeter is 180 m. Length is 55 m. Area is?", "options": {"A": "1925 m²", "B": "2200 m²", "C": "2475 m²", "D": "2750 m²"}, "correct_answer": "A"},
    {"id": 70, "difficulty": "medium", "question": "A square and rectangle have equal perimeters. Square area is 289 cm². Rectangle length is 22 cm. Area is?", "options": {"A": "264 cm²", "B": "286 cm²", "C": "308 cm²", "D": "330 cm²"}, "correct_answer": "B"},
    {"id": 71, "difficulty": "medium", "question": "A triangle area is 78 cm². Base is 13 cm. Height is?", "options": {"A": "6 cm", "B": "8 cm", "C": "10 cm", "D": "12 cm"}, "correct_answer": "D"},
    {"id": 72, "difficulty": "medium", "question": "A room is 7.2 m by 6 m. How many tiles of 40 cm side?", "options": {"A": "180", "B": "270", "C": "360", "D": "450"}, "correct_answer": "B"},
    {"id": 73, "difficulty": "medium", "question": "A parallelogram area is 240 cm². Height is 16 cm. Base is?", "options": {"A": "12 cm", "B": "13 cm", "C": "14 cm", "D": "15 cm"}, "correct_answer": "D"},
    {"id": 74, "difficulty": "medium", "question": "A square area is 484 cm². Rectangle has same area. Rectangle length is 44 cm. Perimeter is?", "options": {"A": "90 cm", "B": "100 cm", "C": "110 cm", "D": "120 cm"}, "correct_answer": "A"},
    {"id": 75, "difficulty": "medium", "question": "A triangle has base 42 cm, area 147 cm². Height is?", "options": {"A": "3.5 cm", "B": "7 cm", "C": "10.5 cm", "D": "14 cm"}, "correct_answer": "B"},
    {"id": 76, "difficulty": "medium", "question": "A rectangular garden length:width = 7:3. Area is 189 m². Perimeter is?", "options": {"A": "50 m", "B": "60 m", "C": "70 m", "D": "80 m"}, "correct_answer": "B"},
    {"id": 77, "difficulty": "medium", "question": "A square perimeter is 72 cm. Equilateral triangle has same perimeter. Triangle area (height ≈ 10.39 cm) is?", "options": {"A": "62.4 cm²", "B": "93.6 cm²", "C": "124.8 cm²", "D": "187.2 cm²"}, "correct_answer": "A"},
    {"id": 78, "difficulty": "medium", "question": "A parallelogram area is 270 cm². Base is 18 cm. Height is?", "options": {"A": "12 cm", "B": "13 cm", "C": "14 cm", "D": "15 cm"}, "correct_answer": "D"},
    {"id": 79, "difficulty": "medium", "question": "A rectangular field perimeter is 140 m. Length is 40 m. Area is?", "options": {"A": "1200 m²", "B": "1400 m²", "C": "1600 m²", "D": "1800 m²"}, "correct_answer": "A"},
    {"id": 80, "difficulty": "medium", "question": "A square area is 625 cm². Rectangle has same perimeter. Rectangle length is 35 cm. Area is?", "options": {"A": "500 cm²", "B": "550 cm²", "C": "600 cm²", "D": "650 cm²"}, "correct_answer": "C"},
    
    {"id": 81, "difficulty": "hard", "question": "A rectangular field is twice as long as wide. If length is increased by 10 m and width decreased by 5 m, area decreases by 50 m². Original area is?", "options": {"A": "800 m²", "B": "1200 m²", "C": "1600 m²", "D": "2000 m²"}, "correct_answer": "D"},
    {"id": 82, "difficulty": "hard", "question": "A square garden has path 2 m wide around it. If area of path is 120 m², area of garden is?", "options": {"A": "144 m²", "B": "169 m²", "C": "196 m²", "D": "225 m²"}, "correct_answer": "B"},
    {"id": 83, "difficulty": "hard", "question": "A rectangle length is reduced by 20% and width increased by 20%. Area changes by?", "options": {"A": "-4%", "B": "No change", "C": "+4%", "D": "-10%"}, "correct_answer": "A"},
    {"id": 84, "difficulty": "hard", "question": "A wire bent to form square of area 256 cm². If same wire bent to form circle, area of circle (π = 22/7) is?", "options": {"A": "308 cm²", "B": "616/π cm²", "C": "2464/π cm²", "D": "324 cm²"}, "correct_answer": "A"},
    {"id": 85, "difficulty": "hard", "question": "Two squares have perimeters in ratio 3:4. Sum of areas is 400 cm². Area of larger square is?", "options": {"A": "144 cm²", "B": "196 cm²", "C": "256 cm²", "D": "324 cm²"}, "correct_answer": "C"},
    {"id": 86, "difficulty": "hard", "question": "A rectangular plot length increased by 25%, width decreased by 20%. Percentage change in area is?", "options": {"A": "0%", "B": "+5%", "C": "-5%", "D": "+10%"}, "correct_answer": "A"},
    {"id": 87, "difficulty": "hard", "question": "A triangle area is 150 cm². Base increased by 20%, height decreased by 25%. New area is?", "options": {"A": "135 cm²", "B": "140 cm²", "C": "145 cm²", "D": "150 cm²"}, "correct_answer": "A"},
    {"id": 88, "difficulty": "hard", "question": "A square and equilateral triangle have equal perimeters. Square area is 225 cm². Triangle area (height ≈ 12.99 cm) is?", "options": {"A": "129.9 cm²", "B": "173.2 cm²", "C": "216.5 cm²", "D": "259.8 cm²"}, "correct_answer": "A"},
    {"id": 89, "difficulty": "hard", "question": "A rectangle perimeter is 100 m. If length increased by 10% and width decreased by 10%, perimeter becomes 98 m. Original area is?", "options": {"A": "500 m²", "B": "525 m²", "C": "550 m²", "D": "600 m²"}, "correct_answer": "D"},
    {"id": 90, "difficulty": "hard", "question": "A wire bent to form equilateral triangle of side 14 cm. If bent to form rectangle with length 15 cm, area of rectangle is?", "options": {"A": "108 cm²", "B": "126 cm²", "C": "144 cm²", "D": "162 cm²"}, "correct_answer": "A"},
    {"id": 91, "difficulty": "hard", "question": "Two rectangles have equal areas. First length:width = 4:3, perimeter 70 cm. Second length is 20 cm. Second perimeter is?", "options": {"A": "54 cm", "B": "58 cm", "C": "62 cm", "D": "66 cm"}, "correct_answer": "B"},
    {"id": 92, "difficulty": "hard", "question": "A square area is 400 cm². If side increased by 20%, new perimeter is?", "options": {"A": "80 cm", "B": "88 cm", "C": "96 cm", "D": "104 cm"}, "correct_answer": "C"},
    {"id": 93, "difficulty": "hard", "question": "A triangle area is 180 cm². Base and height ratio 5:4. Height is?", "options": {"A": "12 cm", "B": "15 cm", "C": "18 cm", "D": "24 cm"}, "correct_answer": "A"},
    {"id": 94, "difficulty": "hard", "question": "A rectangular hall length increased by 5 m, width decreased by 3 m, area decreases by 9 m². If original length twice width, original area is?", "options": {"A": "200 m²", "B": "250 m²", "C": "300 m²", "D": "350 m²"}, "correct_answer": "C"},
    {"id": 95, "difficulty": "hard", "question": "A square and circle have equal perimeters. Square area is 121 cm². Circle area (π = 22/7) is?", "options": {"A": "154 cm²", "B": "616/π cm²", "C": "1386/π cm²", "D": "1232/π cm²"}, "correct_answer": "A"},
    {"id": 96, "difficulty": "hard", "question": "Two equilateral triangles have sides ratio 2:3. Sum of areas is 117 cm². Area of larger is?", "options": {"A": "52 cm²", "B": "65 cm²", "C": "78 cm²", "D": "81 cm²"}, "correct_answer": "D"},
    {"id": 97, "difficulty": "hard", "question": "A rectangle length reduced by 15%, width increased by 20%. Area changes by?", "options": {"A": "+2%", "B": "+5%", "C": "-2%", "D": "-5%"}, "correct_answer": "A"},
    {"id": 98, "difficulty": "hard", "question": "A wire bent to form rectangle 18 cm by 14 cm. If bent to form square, area of square is?", "options": {"A": "144 cm²", "B": "169 cm²", "C": "196 cm²", "D": "256 cm²"}, "correct_answer": "D"},
    {"id": 99, "difficulty": "hard", "question": "A triangle area is 216 cm². Base and height ratio 3:4. Perimeter if it's right triangle is?", "options": {"A": "36 cm", "B": "48 cm", "C": "54 cm", "D": "72 cm"}, "correct_answer": "D"},
    {"id": 100, "difficulty": "hard", "question": "A square field has path 3 m wide inside. If area of path is 156 m², area of field is?", "options": {"A": "400 m²", "B": "441 m²", "C": "484 m²", "D": "529 m²"}, "correct_answer": "B"}
 ,

{"id":101,"difficulty":"easy","question":"A square playground has side 14 m. What is its area?","options":{"A":"28 m²","B":"49 m²","C":"196 m²","D":"56 m²"},"correct_answer":"C"},
    {"id":102,"difficulty":"easy","question":"A rectangle is 12 m long and 8 m wide. Find its perimeter.","options":{"A":"20 m","B":"40 m","C":"96 m","D":"160 m"},"correct_answer":"B"},
    {"id":103,"difficulty":"easy","question":"A triangle has base 6 cm and height 10 cm. What is its area?","options":{"A":"30 cm²","B":"60 cm²","C":"16 cm²","D":"120 cm²"},"correct_answer":"A"},
    {"id":104,"difficulty":"easy","question":"A square has area 81 cm². What is its side?","options":{"A":"8 cm","B":"9 cm","C":"10 cm","D":"12 cm"},"correct_answer":"B"},
    {"id":105,"difficulty":"easy","question":"A rectangle has perimeter 64 cm and length 20 cm. Width is?","options":{"A":"8 cm","B":"10 cm","C":"12 cm","D":"14 cm"},"correct_answer":"A"},
    {"id":106,"difficulty":"easy","question":"Area of a parallelogram with base 15 cm and height 6 cm is?","options":{"A":"21 cm²","B":"45 cm²","C":"90 cm²","D":"180 cm²"},"correct_answer":"C"},
    {"id":107,"difficulty":"easy","question":"A square floor has side 9 m. What is its perimeter?","options":{"A":"18 m","B":"27 m","C":"36 m","D":"81 m"},"correct_answer":"C"},
    {"id":108,"difficulty":"easy","question":"A rectangular sheet is 25 cm by 10 cm. Find its area.","options":{"A":"35 cm²","B":"250 cm²","C":"500 cm²","D":"125 cm²"},"correct_answer":"B"},
    {"id":109,"difficulty":"easy","question":"A triangle area is 36 cm² and base is 12 cm. Height is?","options":{"A":"3 cm","B":"6 cm","C":"9 cm","D":"12 cm"},"correct_answer":"A"},
    {"id":110,"difficulty":"easy","question":"A square has perimeter 20 m. What is its area?","options":{"A":"16 m²","B":"20 m²","C":"25 m²","D":"100 m²"},"correct_answer":"C"},

    {"id":111,"difficulty":"medium","question":"A rectangular park is 3 times as long as wide. Perimeter is 160 m. Find its area.","options":{"A":"1200 m²","B":"1600 m²","C":"2400 m²","D":"3200 m²"},"correct_answer":"B"},
    {"id":112,"difficulty":"medium","question":"A square and rectangle have equal perimeters. Square side is 10 cm. Rectangle length is 12 cm. Find rectangle area.","options":{"A":"72 cm²","B":"96 cm²","C":"120 cm²","D":"144 cm²"},"correct_answer":"B"},
    {"id":113,"difficulty":"medium","question":"Area of a triangle is 90 cm² and height is 9 cm. Base is?","options":{"A":"10 cm","B":"15 cm","C":"18 cm","D":"20 cm"},"correct_answer":"C"},
    {"id":114,"difficulty":"medium","question":"A square garden has area 400 m². A path of 1 m runs inside. Area of path is?","options":{"A":"36 m²","B":"76 m²","C":"84 m²","D":"96 m²"},"correct_answer":"B"},
    {"id":115,"difficulty":"medium","question":"A rectangular room is 9 m by 6 m. How many tiles of side 30 cm are needed?","options":{"A":"300","B":"400","C":"600","D":"900"},"correct_answer":"C"},
    {"id":116,"difficulty":"medium","question":"A parallelogram has area 180 cm² and base 15 cm. Height is?","options":{"A":"10 cm","B":"11 cm","C":"12 cm","D":"15 cm"},"correct_answer":"C"},
    {"id":117,"difficulty":"medium","question":"A square perimeter is 72 cm. Equilateral triangle has same perimeter. Triangle side is?","options":{"A":"18 cm","B":"20 cm","C":"22 cm","D":"24 cm"},"correct_answer":"A"},
    {"id":118,"difficulty":"medium","question":"A rectangle length is 8 cm more than width. Perimeter is 56 cm. Area is?","options":{"A":"160 cm²","B":"168 cm²","C":"192 cm²","D":"224 cm²"},"correct_answer":"C"},
    {"id":119,"difficulty":"medium","question":"A triangle has base 20 cm and area 100 cm². Height is?","options":{"A":"5 cm","B":"8 cm","C":"10 cm","D":"12 cm"},"correct_answer":"C"},
    {"id":120,"difficulty":"medium","question":"A square area is 256 cm². Rectangle has same perimeter. Rectangle length is 20 cm. Area is?","options":{"A":"180 cm²","B":"200 cm²","C":"240 cm²","D":"256 cm²"},"correct_answer":"B"},

    {"id":121,"difficulty":"medium","question":"A rectangular field length:width = 5:4. Area is 500 m². Perimeter is?","options":{"A":"80 m","B":"90 m","C":"100 m","D":"120 m"},"correct_answer":"C"},
    {"id":122,"difficulty":"medium","question":"A square and equilateral triangle have equal perimeters. Square area is 144 cm². Triangle area is about?","options":{"A":"41.6 cm²","B":"62.4 cm²","C":"83.2 cm²","D":"124.8 cm²"},"correct_answer":"B"},
    {"id":123,"difficulty":"medium","question":"A parallelogram has base 24 cm and height 7 cm. Find area.","options":{"A":"84 cm²","B":"168 cm²","C":"196 cm²","D":"224 cm²"},"correct_answer":"B"},
    {"id":124,"difficulty":"medium","question":"A rectangle perimeter is 140 m. Length is 45 m. Area is?","options":{"A":"1575 m²","B":"1800 m²","C":"2025 m²","D":"2250 m²"},"correct_answer":"A"},
    {"id":125,"difficulty":"medium","question":"A triangle area is 150 cm². Base is 25 cm. Height is?","options":{"A":"6 cm","B":"8 cm","C":"10 cm","D":"12 cm"},"correct_answer":"C"},
    {"id":126,"difficulty":"medium","question":"A square and rectangle have equal areas. Square side is 16 cm. Rectangle length is 32 cm. Perimeter is?","options":{"A":"64 cm","B":"72 cm","C":"80 cm","D":"96 cm"},"correct_answer":"C"},
    {"id":127,"difficulty":"medium","question":"A rectangular hall is 20 m by 15 m. How many people can sit if each needs 1.5 m²?","options":{"A":"150","B":"180","C":"200","D":"220"},"correct_answer":"B"},
    {"id":128,"difficulty":"medium","question":"A triangle has base 28 cm and height 14 cm. Area is?","options":{"A":"98 cm²","B":"156 cm²","C":"196 cm²","D":"392 cm²"},"correct_answer":"C"},
    {"id":129,"difficulty":"medium","question":"A square perimeter is 100 cm. Area is?","options":{"A":"400 cm²","B":"500 cm²","C":"625 cm²","D":"1000 cm²"},"correct_answer":"C"},
    {"id":130,"difficulty":"medium","question":"A rectangle area is 360 cm² and width is 12 cm. Perimeter is?","options":{"A":"60 cm","B":"72 cm","C":"84 cm","D":"96 cm"},"correct_answer":"B"},

    {"id":131,"difficulty":"hard","question":"A square garden has a path 3 m wide inside. If area of path is 204 m², find area of garden.","options":{"A":"361 m²","B":"400 m²","C":"441 m²","D":"484 m²"},"correct_answer":"C"},
    {"id":132,"difficulty":"hard","question":"A rectangle length is reduced by 10% and width increased by 10%. Percentage change in area is?","options":{"A":"-1%","B":"0%","C":"+1%","D":"+10%"},"correct_answer":"A"},
    {"id":133,"difficulty":"hard","question":"A wire forms a square of area 196 cm². If bent into a circle (π=22/7), area of circle is?","options":{"A":"308 cm²","B":"352 cm²","C":"392 cm²","D":"616 cm²"},"correct_answer":"A"},
    {"id":134,"difficulty":"hard","question":"Two squares have areas in ratio 1:4. Ratio of their perimeters is?","options":{"A":"1:2","B":"1:3","C":"1:4","D":"1:8"},"correct_answer":"A"},
    {"id":135,"difficulty":"hard","question":"A rectangle perimeter is 120 m. If length is increased by 20% and width by 10%, new perimeter is?","options":{"A":"132 m","B":"138 m","C":"144 m","D":"150 m"},"correct_answer":"B"},
    {"id":136,"difficulty":"hard","question":"Area of an equilateral triangle is 108√3 cm². Its perimeter is?","options":{"A":"36 cm","B":"48 cm","C":"60 cm","D":"72 cm"},"correct_answer":"B"},
    {"id":137,"difficulty":"hard","question":"A square area is 225 cm². A rectangle has same area and length 25 cm. Find rectangle perimeter.","options":{"A":"60 cm","B":"64 cm","C":"68 cm","D":"72 cm"},"correct_answer":"C"},
    {"id":138,"difficulty":"hard","question":"A triangle area is 200 cm². Base:height = 5:4. Height is?","options":{"A":"8 cm","B":"10 cm","C":"12 cm","D":"16 cm"},"correct_answer":"B"},
    {"id":139,"difficulty":"hard","question":"A rectangular field length is twice its width. Area is 800 m². Perimeter is?","options":{"A":"100 m","B":"120 m","C":"160 m","D":"200 m"},"correct_answer":"B"},
    {"id":140,"difficulty":"hard","question":"A square and circle have equal perimeters. Square area is 256 cm². Circle area (π=22/7) is?","options":{"A":"308 cm²","B":"352 cm²","C":"616/π cm²","D":"704 cm²"},"correct_answer":"A"},

    {"id":141,"difficulty":"hard","question":"Two equilateral triangles have sides in ratio 3:5. Ratio of their areas is?","options":{"A":"3:5","B":"9:25","C":"5:3","D":"25:9"},"correct_answer":"B"},
    {"id":142,"difficulty":"hard","question":"A square perimeter is 80 cm. If side is increased by 25%, new area is?","options":{"A":"400 cm²","B":"500 cm²","C":"625 cm²","D":"640 cm²"},"correct_answer":"C"},
    {"id":143,"difficulty":"hard","question":"A rectangle has area 300 cm². If length is increased by 20% and width decreased by 20%, new area is?","options":{"A":"240 cm²","B":"260 cm²","C":"288 cm²","D":"300 cm²"},"correct_answer":"C"},
    {"id":144,"difficulty":"hard","question":"A wire makes a rectangle 18 cm by 10 cm. If bent into a square, area is?","options":{"A":"196 cm²","B":"256 cm²","C":"324 cm²","D":"400 cm²"},"correct_answer":"B"},
    {"id":145,"difficulty":"hard","question":"Area of a right triangle is 96 cm². If base is 16 cm, hypotenuse is?","options":{"A":"18 cm","B":"20 cm","C":"24 cm","D":"26 cm"},"correct_answer":"B"},
    {"id":146,"difficulty":"hard","question":"A square field has a path 2 m wide outside. If total area is 196 m², find area of field.","options":{"A":"100 m²","B":"121 m²","C":"144 m²","D":"169 m²"},"correct_answer":"B"},
    {"id":147,"difficulty":"hard","question":"A rectangle length:width = 3:2. If perimeter is 100 cm, area is?","options":{"A":"384 cm²","B":"600 cm²","C":"768 cm²","D":"900 cm²"},"correct_answer":"A"},
    {"id":148,"difficulty":"hard","question":"An equilateral triangle has perimeter 60 cm. A square has same area. Square perimeter is?","options":{"A":"48 cm","B":"52 cm","C":"56 cm","D":"60 cm"},"correct_answer":"C"},
    {"id":149,"difficulty":"hard","question":"A rectangle perimeter is 150 m. If length is reduced by 10% and width increased by 10%, new perimeter is?","options":{"A":"145 m","B":"150 m","C":"155 m","D":"160 m"},"correct_answer":"B"},
    {"id":150,"difficulty":"hard","question":"A square garden has side increased by 20%. Percentage increase in area is?","options":{"A":"20%","B":"36%","C":"40%","D":"44%"},"correct_answer":"B"}
 ]
}