{
  "title": "Word Problems (Mensuration) - Grade 5 ICSE",
  "total_questions": 60,
  "questions": [
    {
      "id": 1,
      "difficulty": "easy",
      "question": "A square field has side 25 m. What is its perimeter? 🌾",
      "options": { "A": "90 m", "B": "95 m", "C": "100 m", "D": "105 m" },
      "correct_answer": "C"
    },
    {
      "id": 2,
      "difficulty": "easy",
      "question": "Rectangle garden: length=30 m, width=20 m. Area? 🌷",
      "options": { "A": "500 m²", "B": "550 m²", "C": "600 m²", "D": "650 m²" },
      "correct_answer": "C"
    },
    {
      "id": 3,
      "difficulty": "easy",
      "question": "Triangle base=12 cm, height=8 cm. Area? 🔺",
      "options": { "A": "44 cm²", "B": "46 cm²", "C": "48 cm²", "D": "50 cm²" },
      "correct_answer": "C"
    },
    {
      "id": 4,
      "difficulty": "easy",
      "question": "Cube side=4 cm. Volume? 🧊",
      "options": { "A": "60 cm³", "B": "62 cm³", "C": "64 cm³", "D": "66 cm³" },
      "correct_answer": "C"
    },
    {
      "id": 5,
      "difficulty": "easy",
      "question": "Fence around square plot side=15 m. Total fence length? 🏡",
      "options": { "A": "55 m", "B": "58 m", "C": "60 m", "D": "62 m" },
      "correct_answer": "C"
    },
    {
      "id": 6,
      "difficulty": "easy",
      "question": "Swimming pool: length=20 m, width=10 m. Area of base? 🏊",
      "options": { "A": "190 m²", "B": "195 m²", "C": "200 m²", "D": "205 m²" },
      "correct_answer": "C"
    },
    {
      "id": 7,
      "difficulty": "easy",
      "question": "Parallelogram base=18 cm, height=7 cm. Area? 📐",
      "options": {
        "A": "120 cm²",
        "B": "124 cm²",
        "C": "126 cm²",
        "D": "128 cm²"
      },
      "correct_answer": "C"
    },
    {
      "id": 8,
      "difficulty": "easy",
      "question": "Book dimensions: 24 cm × 18 cm × 3 cm. Volume? 📚",
      "options": {
        "A": "1280 cm³",
        "B": "1290 cm³",
        "C": "1296 cm³",
        "D": "1300 cm³"
      },
      "correct_answer": "C"
    },
    {
      "id": 9,
      "difficulty": "easy",
      "question": "Triangle sides: 5 cm, 12 cm, 13 cm. Perimeter? 🔺",
      "options": { "A": "28 cm", "B": "29 cm", "C": "30 cm", "D": "31 cm" },
      "correct_answer": "C"
    },
    {
      "id": 10,
      "difficulty": "easy",
      "question": "Rectangular wall: 8 m × 5 m. Area to paint? 🎨",
      "options": { "A": "38 m²", "B": "39 m²", "C": "40 m²", "D": "41 m²" },
      "correct_answer": "C"
    },
    {
      "id": 11,
      "difficulty": "easy",
      "question": "Cube side=9 cm. Volume? 🧊",
      "options": {
        "A": "719 cm³",
        "B": "729 cm³",
        "C": "739 cm³",
        "D": "749 cm³"
      },
      "correct_answer": "B"
    },
    {
      "id": 12,
      "difficulty": "easy",
      "question": "Pentagon side=11 cm. Perimeter? ⬟",
      "options": { "A": "52 cm", "B": "53 cm", "C": "54 cm", "D": "55 cm" },
      "correct_answer": "D"
    },
    {
      "id": 13,
      "difficulty": "easy",
      "question": "Cuboid: 15 cm × 12 cm × 10 cm. Volume? 📦",
      "options": {
        "A": "1750 cm³",
        "B": "1780 cm³",
        "C": "1800 cm³",
        "D": "1820 cm³"
      },
      "correct_answer": "C"
    },
    {
      "id": 14,
      "difficulty": "easy",
      "question": "Square tile side=30 cm. Area? 🧱",
      "options": {
        "A": "850 cm²",
        "B": "880 cm²",
        "C": "900 cm²",
        "D": "920 cm²"
      },
      "correct_answer": "C"
    },
    {
      "id": 15,
      "difficulty": "easy",
      "question": "Triangle area=54 cm², base=12 cm. Height? 🔺",
      "options": { "A": "8 cm", "B": "8.5 cm", "C": "9 cm", "D": "9.5 cm" },
      "correct_answer": "C"
    },
    {
      "id": 16,
      "difficulty": "easy",
      "question": "Room: 6 m × 5 m. Carpet area needed? 🏠",
      "options": { "A": "28 m²", "B": "29 m²", "C": "30 m²", "D": "31 m²" },
      "correct_answer": "C"
    },
    {
      "id": 17,
      "difficulty": "easy",
      "question": "Cube volume=512 cm³. Side? 🧊",
      "options": { "A": "7 cm", "B": "7.5 cm", "C": "8 cm", "D": "8.5 cm" },
      "correct_answer": "C"
    },
    {
      "id": 18,
      "difficulty": "easy",
      "question": "Rectangular pool: 25 m × 15 m. Perimeter? 🏊",
      "options": { "A": "75 m", "B": "78 m", "C": "80 m", "D": "82 m" },
      "correct_answer": "C"
    },
    {
      "id": 19,
      "difficulty": "easy",
      "question": "Parallelogram area=96 cm², base=16 cm. Height? 📐",
      "options": { "A": "5 cm", "B": "5.5 cm", "C": "6 cm", "D": "6.5 cm" },
      "correct_answer": "C"
    },
    {
      "id": 20,
      "difficulty": "easy",
      "question": "Hexagon side=13 cm. Perimeter? ⬢",
      "options": { "A": "76 cm", "B": "77 cm", "C": "78 cm", "D": "79 cm" },
      "correct_answer": "C"
    },
    {
      "id": 21,
      "difficulty": "medium",
      "question": "Rectangular field perimeter=160 m. Length=50 m. Width? 🌾",
      "options": { "A": "28 m", "B": "29 m", "C": "30 m", "D": "31 m" },
      "correct_answer": "C"
    },
    {
      "id": 22,
      "difficulty": "medium",
      "question": "Two squares: area ratio 9:16. Side ratio? 📊",
      "options": { "A": "3:4", "B": "4:3", "C": "9:16", "D": "16:9" },
      "correct_answer": "A"
    },
    {
      "id": 23,
      "difficulty": "medium",
      "question": "Cuboid volume=840 cm³. Length=15 cm, height=8 cm. Width? 📦",
      "options": { "A": "6 cm", "B": "6.5 cm", "C": "7 cm", "D": "7.5 cm" },
      "correct_answer": "C"
    },
    {
      "id": 24,
      "difficulty": "medium",
      "question": "Triangle perimeter=45 cm. Two sides=15 cm, 20 cm. Third side? 🔺",
      "options": { "A": "8 cm", "B": "9 cm", "C": "10 cm", "D": "11 cm" },
      "correct_answer": "C"
    },
    {
      "id": 25,
      "difficulty": "medium",
      "question": "Square and equilateral triangle same perimeter=60 cm. Square side? Triangle side? 🔄",
      "options": {
        "A": "Square=15 cm, Triangle=20 cm",
        "B": "Square=14 cm, Triangle=18 cm",
        "C": "Square=16 cm, Triangle=22 cm",
        "D": "Square=17 cm, Triangle=23 cm"
      },
      "correct_answer": "A"
    },
    {
      "id": 26,
      "difficulty": "medium",
      "question": "Water tank: 2 m × 1.5 m × 1.2 m. Volume in liters? 💧",
      "options": { "A": "3500 L", "B": "3550 L", "C": "3600 L", "D": "3650 L" },
      "correct_answer": "C"
    },
    {
      "id": 27,
      "difficulty": "medium",
      "question": "Rectangle area=108 m². Length=12 m. Width? 🏡",
      "options": { "A": "8 m", "B": "8.5 m", "C": "9 m", "D": "9.5 m" },
      "correct_answer": "C"
    },
    {
      "id": 28,
      "difficulty": "medium",
      "question": "Cube side increased by 3 cm from 7 cm. Volume increase? 🧊",
      "options": {
        "A": "651 cm³",
        "B": "657 cm³",
        "C": "663 cm³",
        "D": "669 cm³"
      },
      "correct_answer": "B"
    },
    {
      "id": 29,
      "difficulty": "medium",
      "question": "Parallelogram area=120 cm², height=10 cm. Base? 📐",
      "options": { "A": "10 cm", "B": "11 cm", "C": "12 cm", "D": "13 cm" },
      "correct_answer": "C"
    },
    {
      "id": 30,
      "difficulty": "medium",
      "question": "Hexagon perimeter=90 cm. Side? ⬢",
      "options": { "A": "14 cm", "B": "14.5 cm", "C": "15 cm", "D": "15.5 cm" },
      "correct_answer": "C"
    },
    {
      "id": 31,
      "difficulty": "medium",
      "question": "Two cuboids: 6×5×4 cm and 8×6×3 cm. Which has larger volume? ⚖️",
      "options": {
        "A": "First",
        "B": "Second",
        "C": "Equal",
        "D": "Can't compare"
      },
      "correct_answer": "B"
    },
    {
      "id": 32,
      "difficulty": "medium",
      "question": "Triangle area=84 cm², height=14 cm. Base? 🔺",
      "options": { "A": "10 cm", "B": "11 cm", "C": "12 cm", "D": "13 cm" },
      "correct_answer": "C"
    },
    {
      "id": 33,
      "difficulty": "medium",
      "question": "Room dimensions: 5 m × 4 m × 3 m. Wall area (excluding floor/ceiling)? 🏠",
      "options": { "A": "52 m²", "B": "53 m²", "C": "54 m²", "D": "55 m²" },
      "correct_answer": "C"
    },
    {
      "id": 34,
      "difficulty": "medium",
      "question": "Square area=196 cm². Side? Then perimeter? ⬜",
      "options": {
        "A": "Side=13 cm, Perimeter=52 cm",
        "B": "Side=14 cm, Perimeter=56 cm",
        "C": "Side=15 cm, Perimeter=60 cm",
        "D": "Side=16 cm, Perimeter=64 cm"
      },
      "correct_answer": "B"
    },
    {
      "id": 35,
      "difficulty": "medium",
      "question": "Cube volume=1331 cm³. Side? 🧊",
      "options": { "A": "10 cm", "B": "10.5 cm", "C": "11 cm", "D": "11.5 cm" },
      "correct_answer": "C"
    },
    {
      "id": 36,
      "difficulty": "medium",
      "question": "Fencing cost ₹85/m. Rectangular plot 40 m × 25 m. Total cost? 💰",
      "options": {
        "A": "₹10,950",
        "B": "₹11,000",
        "C": "₹11,050",
        "D": "₹11,100"
      },
      "correct_answer": "C"
    },
    {
      "id": 37,
      "difficulty": "medium",
      "question": "Pentagon perimeter=85 cm. Side? ⬟",
      "options": { "A": "16 cm", "B": "16.5 cm", "C": "17 cm", "D": "17.5 cm" },
      "correct_answer": "C"
    },
    {
      "id": 38,
      "difficulty": "medium",
      "question": "Cuboid: volume=960 cm³, length=16 cm, width=10 cm. Height? 📦",
      "options": { "A": "5 cm", "B": "5.5 cm", "C": "6 cm", "D": "6.5 cm" },
      "correct_answer": "C"
    },
    {
      "id": 39,
      "difficulty": "medium",
      "question": "Triangle sides ratio 3:4:5, perimeter=72 cm. Longest side? 🔺",
      "options": { "A": "28 cm", "B": "29 cm", "C": "30 cm", "D": "31 cm" },
      "correct_answer": "C"
    },
    {
      "id": 40,
      "difficulty": "medium",
      "question": "Cube side=12 cm. Volume? Then if side halved, new volume? 🧊",
      "options": {
        "A": "1728 cm³, New=216 cm³",
        "B": "1728 cm³, New=224 cm³",
        "C": "1740 cm³, New=217.5 cm³",
        "D": "1740 cm³, New=220 cm³"
      },
      "correct_answer": "A"
    },
    {
      "id": 41,
      "difficulty": "hard",
      "question": "Rectangle perimeter=120 m. Length is 50% more than width. Find area. 📊",
      "options": { "A": "850 m²", "B": "864 m²", "C": "875 m²", "D": "880 m²" },
      "correct_answer": "B"
    },
    {
      "id": 42,
      "difficulty": "hard",
      "question": "Cube and cuboid same volume 1000 cm³. Cube side=10 cm. Cuboid: length=20 cm, width=10 cm. Height? 🔄",
      "options": { "A": "4 cm", "B": "4.5 cm", "C": "5 cm", "D": "5.5 cm" },
      "correct_answer": "C"
    },
    {
      "id": 43,
      "difficulty": "hard",
      "question": "Water tank cuboid: 2.4 m × 1.8 m × 1.5 m. Volume in kiloliters? 💧",
      "options": {
        "A": "6.45 kL",
        "B": "6.48 kL",
        "C": "6.50 kL",
        "D": "6.52 kL"
      },
      "correct_answer": "B"
    },
    {
      "id": 44,
      "difficulty": "hard",
      "question": "Square side increased by 30%. Area increase %? 📈",
      "options": { "A": "30%", "B": "60%", "C": "69%", "D": "90%" },
      "correct_answer": "C"
    },
    {
      "id": 45,
      "difficulty": "hard",
      "question": "Triangle area=150 cm². Base:height = 5:3. Find height. 🔺",
      "options": {
        "A": "12.5 cm",
        "B": "13 cm",
        "C": "13.4 cm",
        "D": "14 cm"
      },
      "correct_answer": "C"
    },

    {
      "id": 46,
      "difficulty": "hard",
      "question": "Room: 8 m × 6 m × 4 m. Paint walls only (exclude floor/ceiling). Paint needed for 2 coats if 1 L covers 12 m²? 🎨",
      "options": {
        "A": "18.5 L",
        "B": "18.7 L",
        "C": "19.0 L",
        "D": "19.5 L"
      },
      "correct_answer": "B"
    },
    {
      "id": 47,
      "difficulty": "hard",
      "question": "Cube volume=2744 cm³. Side? Then surface area? 🧊",
      "options": {
        "A": "Side=14 cm, SA=1176 cm²",
        "B": "Side=13 cm, SA=1014 cm²",
        "C": "Side=15 cm, SA=1350 cm²",
        "D": "Side=16 cm, SA=1536 cm²"
      },
      "correct_answer": "A"
    },
    {
      "id": 48,
      "difficulty": "hard",
      "question": "Cuboid dimensions ratio 2:3:4. Volume=192 cm³. Find dimensions. 📐",
      "options": {
        "A": "4,6,8 cm",
        "B": "5,7,9 cm",
        "C": "6,9,12 cm",
        "D": "8,12,16 cm"
      },
      "correct_answer": "A"
    },
    {
      "id": 49,
      "difficulty": "hard",
      "question": "Walk around rectangular park 5 times. Park: 120 m × 80 m. Total km? (1000 m=1 km) 🚶",
      "options": { "A": "1.8 km", "B": "1.9 km", "C": "2.0 km", "D": "2.1 km" },
      "correct_answer": "C"
    },
    {
      "id": 50,
      "difficulty": "hard",
      "question": "Cube side increased by 2 cm, volume increases by 488 cm³. Original side? 🧊",
      "options": {
        "A": "8 cm",
        "B": "9 cm",
        "C": "10 cm",
        "D": "11 cm"
      },
      "correct_answer": "A"
    },
    {
      "id": 51,
      "difficulty": "hard",
      "question": "Triangle area=√3/4 × side² for equilateral triangle. Side=12 cm. Area? (√3≈1.732) 🔺",
      "options": { "A": "60 cm²", "B": "61 cm²", "C": "62 cm²", "D": "63 cm²" },
      "correct_answer": "C"
    },
    {
      "id": 52,
      "difficulty": "hard",
      "question": "Container: 90 cm × 60 cm × 45 cm. How many 500 mL bottles fit? (1000 cm³=1 L) 🍼",
      "options": { "A": "480", "B": "485", "C": "486", "D": "490" },
      "correct_answer": "C"
    },
    {
      "id": 53,
      "difficulty": "hard",
      "question": "Rectangle length increased 25%, width decreased 20%. Area change %? 📈",
      "options": { "A": "No change", "B": "+5%", "C": "-5%", "D": "+10%" },
      "correct_answer": "A"
    },
    {
      "id": 54,
      "difficulty": "hard",
      "question": "Hexagon perimeter=10.8 m. Side in cm? ⬢",
      "options": { "A": "175 cm", "B": "178 cm", "C": "180 cm", "D": "182 cm" },
      "correct_answer": "C"
    },
    {
      "id": 55,
      "difficulty": "hard",
      "question": "Cube volume=46,656 cm³. Side? 🧊",
      "options": { "A": "34 cm", "B": "35 cm", "C": "36 cm", "D": "37 cm" },
      "correct_answer": "C"
    },
    {
      "id": 56,
      "difficulty": "hard",
      "question": "Cuboid volume=5.4 m³. Dimensions: 3 m × 1.8 m × ? m. Height? 📦",
      "options": { "A": "0.9 m", "B": "1.0 m", "C": "1.1 m", "D": "1.2 m" },
      "correct_answer": "B"
    },
    {
      "id": 57,
      "difficulty": "hard",
      "question": "Square and circle same perimeter 88 cm. Square side? 🔲⭕",
      "options": { "A": "21 cm", "B": "21.5 cm", "C": "22 cm", "D": "22.5 cm" },
      "correct_answer": "C"
    },
    {
      "id": 58,
      "difficulty": "hard",
      "question": "Fencing triangular plot ₹150/m. Sides: 65 m, 72 m, 97 m. Total cost? 💰",
      "options": {
        "A": "₹34,500",
        "B": "₹34,800",
        "C": "₹35,100",
        "D": "₹35,400"
      },
      "correct_answer": "C"
    },
    {
      "id": 59,
      "difficulty": "hard",
      "question": "Cube A volume=729 cm³, Cube B side=12 cm. Volume difference? ⚖️",
      "options": {
        "A": "987 cm³",
        "B": "995 cm³",
        "C": "999 cm³",
        "D": "1005 cm³"
      },
      "correct_answer": "C"
    },
    {
      "id": 60,
      "difficulty": "hard",
      "question": "Composite shape: rectangle 20×15 cm with triangle on top base=20 cm, height=8 cm. Total area? 🧩",
      "options": {
        "A": "360 cm²",
        "B": "380 cm²",
        "C": "400 cm²",
        "D": "420 cm²"
      },
      "correct_answer": "B"
    }
  ]
}