{
  "title": "Area of Parallelogram (Mensuration) - Grade 5 ICSE",
  "total_questions": 60,
  "questions": [
    {
      "id": 1,
      "difficulty": "easy",
      "question": "A parallelogram has base = 5 cm and height = 3 cm. What is its area? 📐",
      "options": { "A": "8 cm²", "B": "15 cm²", "C": "12 cm²", "D": "10 cm²" },
      "correct_answer": "B"
    },
    {
      "id": 2,
      "difficulty": "easy",
      "question": "What is the formula for area of parallelogram? ✏️",
      "options": {
        "A": "side × side",
        "B": "length × width",
        "C": "base × height",
        "D": "½ × base × height"
      },
      "correct_answer": "C"
    },
    {
      "id": 3,
      "difficulty": "easy",
      "question": "A parallelogram with base 8 m and height 2 m has area = ? 📏",
      "options": { "A": "10 m²", "B": "16 m²", "C": "12 m²", "D": "14 m²" },
      "correct_answer": "B"
    },
    {
      "id": 4,
      "difficulty": "easy",
      "question": "If base = 6 cm, height = 4 cm, area of parallelogram = ? 🔺",
      "options": { "A": "20 cm²", "B": "18 cm²", "C": "24 cm²", "D": "22 cm²" },
      "correct_answer": "C"
    },
    {
      "id": 5,
      "difficulty": "easy",
      "question": "Find area: base = 10 cm, height = 7 cm 🧮",
      "options": { "A": "17 cm²", "B": "60 cm²", "C": "70 cm²", "D": "77 cm²" },
      "correct_answer": "C"
    },
    {
      "id": 6,
      "difficulty": "easy",
      "question": "Area of parallelogram = base × ? ❓",
      "options": { "A": "width", "B": "height", "C": "side", "D": "length" },
      "correct_answer": "B"
    },
    {
      "id": 7,
      "difficulty": "easy",
      "question": "Base = 12 m, height = 5 m. Area = ? 🏠",
      "options": { "A": "50 m²", "B": "55 m²", "C": "60 m²", "D": "65 m²" },
      "correct_answer": "C"
    },
    {
      "id": 8,
      "difficulty": "easy",
      "question": "A parallelogram shaped garden has base 15 m, height 6 m. Area? 🌻",
      "options": { "A": "80 m²", "B": "85 m²", "C": "90 m²", "D": "95 m²" },
      "correct_answer": "C"
    },
    {
      "id": 9,
      "difficulty": "easy",
      "question": "If area = 45 cm² and height = 5 cm, find base. 🔍",
      "options": { "A": "7 cm", "B": "8 cm", "C": "9 cm", "D": "10 cm" },
      "correct_answer": "C"
    },
    {
      "id": 10,
      "difficulty": "easy",
      "question": "Which shape has formula: base × height? 🤔",
      "options": {
        "A": "Triangle",
        "B": "Square",
        "C": "Parallelogram",
        "D": "Circle"
      },
      "correct_answer": "C"
    },
    {
      "id": 11,
      "difficulty": "easy",
      "question": "Base = 9 cm, height = 8 cm. Area = ? 📊",
      "options": { "A": "68 cm²", "B": "70 cm²", "C": "72 cm²", "D": "74 cm²" },
      "correct_answer": "C"
    },
    {
      "id": 12,
      "difficulty": "easy",
      "question": "A book cover shaped like parallelogram: base 20 cm, height 15 cm. Area? 📚",
      "options": {
        "A": "250 cm²",
        "B": "300 cm²",
        "C": "350 cm²",
        "D": "400 cm²"
      },
      "correct_answer": "B"
    },
    {
      "id": 13,
      "difficulty": "easy",
      "question": "Area = 56 m², base = 8 m. Height = ? 📐",
      "options": { "A": "6 m", "B": "7 m", "C": "8 m", "D": "9 m" },
      "correct_answer": "B"
    },
    {
      "id": 14,
      "difficulty": "easy",
      "question": "Base = 11 cm, height = 6 cm. Calculate area. 🧮",
      "options": { "A": "64 cm²", "B": "66 cm²", "C": "68 cm²", "D": "70 cm²" },
      "correct_answer": "B"
    },
    {
      "id": 15,
      "difficulty": "easy",
      "question": "Which is NOT needed for parallelogram area? ❌",
      "options": {
        "A": "Base",
        "B": "Height",
        "C": "Angle",
        "D": "All of these"
      },
      "correct_answer": "C"
    },
    {
      "id": 16,
      "difficulty": "easy",
      "question": "Area = 81 cm², height = 9 cm. Base = ? 🔢",
      "options": { "A": "8 cm", "B": "9 cm", "C": "10 cm", "D": "11 cm" },
      "correct_answer": "B"
    },
    {
      "id": 17,
      "difficulty": "easy",
      "question": "Base = 7 m, height = 4 m. Area in m²? 🏡",
      "options": { "A": "26 m²", "B": "28 m²", "C": "30 m²", "D": "32 m²" },
      "correct_answer": "B"
    },
    {
      "id": 18,
      "difficulty": "easy",
      "question": "A tile shaped parallelogram: base 25 cm, height 12 cm. Area? 🧱",
      "options": {
        "A": "275 cm²",
        "B": "300 cm²",
        "C": "325 cm²",
        "D": "350 cm²"
      },
      "correct_answer": "B"
    },
    {
      "id": 19,
      "difficulty": "easy",
      "question": "True or False: Rectangle is a type of parallelogram. ✅❎",
      "options": { "A": "True", "B": "False", "C": "Sometimes", "D": "Never" },
      "correct_answer": "A"
    },
    {
      "id": 20,
      "difficulty": "easy",
      "question": "Base = 30 mm, height = 20 mm. Area in mm²? 📏",
      "options": {
        "A": "500 mm²",
        "B": "550 mm²",
        "C": "600 mm²",
        "D": "650 mm²"
      },
      "correct_answer": "C"
    },
    {
      "id": 21,
      "difficulty": "medium",
      "question": "A parallelogram has area 48 cm². If base is 12 cm, find height. 📏",
      "options": { "A": "3 cm", "B": "4 cm", "C": "5 cm", "D": "6 cm" },
      "correct_answer": "B"
    },
    {
      "id": 22,
      "difficulty": "medium",
      "question": "Two parallelograms: First: base 10 cm, height 5 cm. Second: base 5 cm, height 10 cm. Compare areas. ⚖️",
      "options": {
        "A": "First is larger",
        "B": "Second is larger",
        "C": "Both equal",
        "D": "Cannot compare"
      },
      "correct_answer": "C"
    },
    {
      "id": 23,
      "difficulty": "medium",
      "question": "A parallelogram field has base 45 m, height 32 m. Find area in m². 🌾",
      "options": {
        "A": "1340 m²",
        "B": "1400 m²",
        "C": "1440 m²",
        "D": "1500 m²"
      },
      "correct_answer": "C"
    },
    {
      "id": 24,
      "difficulty": "medium",
      "question": "From rectangle of 15 cm × 8 cm, a parallelogram of same base & height is made. Their areas are? 🔄",
      "options": {
        "A": "Equal",
        "B": "Rectangle larger",
        "C": "Parallelogram larger",
        "D": "Can't say"
      },
      "correct_answer": "A"
    },
    {
      "id": 25,
      "difficulty": "medium",
      "question": "Area = 72 m², height = 9 m. Base = ? 🧩",
      "options": { "A": "7 m", "B": "8 m", "C": "9 m", "D": "10 m" },
      "correct_answer": "B"
    },
    {
      "id": 26,
      "difficulty": "medium",
      "question": "A parallelogram picture frame: base 40 cm, height 25 cm. What area of glass needed? 🖼️",
      "options": {
        "A": "950 cm²",
        "B": "1000 cm²",
        "C": "1050 cm²",
        "D": "1100 cm²"
      },
      "correct_answer": "B"
    },
    {
      "id": 27,
      "difficulty": "medium",
      "question": "If base is doubled and height remains same, area becomes? 🔄",
      "options": { "A": "Same", "B": "Doubled", "C": "Tripled", "D": "Halved" },
      "correct_answer": "B"
    },
    {
      "id": 28,
      "difficulty": "medium",
      "question": "Find height when area = 63 cm² and base = 9 cm. 📐",
      "options": { "A": "6 cm", "B": "7 cm", "C": "8 cm", "D": "9 cm" },
      "correct_answer": "B"
    },
    {
      "id": 29,
      "difficulty": "medium",
      "question": "A parallelogram shaped park: base 80 m, height 50 m. Area in hectares? (1 hectare = 10,000 m²) 🌳",
      "options": {
        "A": "0.3 hectares",
        "B": "0.4 hectares",
        "C": "0.5 hectares",
        "D": "0.6 hectares"
      },
      "correct_answer": "B"
    },
    {
      "id": 30,
      "difficulty": "medium",
      "question": "Area = 96 cm², base = 12 cm. Height = ? ❓",
      "options": { "A": "7 cm", "B": "8 cm", "C": "9 cm", "D": "10 cm" },
      "correct_answer": "B"
    },
    {
      "id": 31,
      "difficulty": "medium",
      "question": "Two parallelograms have equal areas. First: base 16 cm, height 5 cm. Second: base 10 cm. Find height of second. ⚖️",
      "options": { "A": "6 cm", "B": "7 cm", "C": "8 cm", "D": "9 cm" },
      "correct_answer": "C"
    },
    {
      "id": 32,
      "difficulty": "medium",
      "question": "Base increased by 2 cm, height decreased by 1 cm from original 10 cm base, 8 cm height. New area vs original? 🔄",
      "options": { "A": "Same", "B": "Larger", "C": "Smaller", "D": "Equal" },
      "correct_answer": "B"
    },
    {
      "id": 33,
      "difficulty": "medium",
      "question": "A parallelogram sheet: base 75 cm, height 48 cm. Area in cm²? 📄",
      "options": {
        "A": "3500 cm²",
        "B": "3600 cm²",
        "C": "3700 cm²",
        "D": "3800 cm²"
      },
      "correct_answer": "B"
    },
    {
      "id": 34,
      "difficulty": "medium",
      "question": "If height is tripled and base halved, area becomes? 🔢",
      "options": {
        "A": "1.5 times",
        "B": "Same",
        "C": "Tripled",
        "D": "Halved"
      },
      "correct_answer": "A"
    },
    {
      "id": 35,
      "difficulty": "medium",
      "question": "Area = 108 m², height = 12 m. Base = ? 📏",
      "options": { "A": "8 m", "B": "9 m", "C": "10 m", "D": "11 m" },
      "correct_answer": "B"
    },
    {
      "id": 36,
      "difficulty": "medium",
      "question": "A kite shaped like parallelogram: base 65 cm, height 40 cm. Area? 🪁",
      "options": {
        "A": "2500 cm²",
        "B": "2550 cm²",
        "C": "2600 cm²",
        "D": "2650 cm²"
      },
      "correct_answer": "C"
    },
    {
      "id": 37,
      "difficulty": "medium",
      "question": "Find base when area = 84 cm² and height = 7 cm. 🧮",
      "options": { "A": "10 cm", "B": "11 cm", "C": "12 cm", "D": "13 cm" },
      "correct_answer": "C"
    },
    {
      "id": 38,
      "difficulty": "medium",
      "question": "A parallelogram has same area as rectangle 9 cm × 8 cm. If base is 12 cm, find height. 🔄",
      "options": { "A": "5 cm", "B": "6 cm", "C": "7 cm", "D": "8 cm" },
      "correct_answer": "B"
    },
    {
      "id": 39,
      "difficulty": "medium",
      "question": "Base = 14 m, height = 11 m. Area difference from rectangle of same dimensions? ⚖️",
      "options": { "A": "0 m²", "B": "14 m²", "C": "28 m²", "D": "154 m²" },
      "correct_answer": "A"
    },
    {
      "id": 40,
      "difficulty": "medium",
      "question": "Area = 135 cm², base = 15 cm. Height = ? 📐",
      "options": { "A": "8 cm", "B": "9 cm", "C": "10 cm", "D": "11 cm" },
      "correct_answer": "B"
    },
    {
      "id": 41,
      "difficulty": "hard",
      "question": "A parallelogram has area 120 cm². If height is 10 cm, find base. Then if base increased by 2 cm, find new area. 📈",
      "options": {
        "A": "Base=12 cm, New area=132 cm²",
        "B": "Base=12 cm, New area=140 cm²",
        "C": "Base=10 cm, New area=120 cm²",
        "D": "Base=11 cm, New area=130 cm²"
      },
      "correct_answer": "B"
    },
    {
      "id": 42,
      "difficulty": "hard",
      "question": "Three parallelograms: A(base=8,h=6), B(base=12,h=4), C(base=6,h=8). Which has largest area? 🏆",
      "options": { "A": "A", "B": "B", "C": "C", "D": "All equal" },
      "correct_answer": "D"
    },
    {
      "id": 43,
      "difficulty": "hard",
      "question": "A field shaped parallelogram: base 150 m, height 80 m. Find area in hectares. (1 hectare = 10,000 m²) 🌾",
      "options": {
        "A": "1.0 hectare",
        "B": "1.2 hectares",
        "C": "1.4 hectares",
        "D": "1.6 hectares"
      },
      "correct_answer": "B"
    },
    {
      "id": 44,
      "difficulty": "hard",
      "question": "From parallelogram of area 96 cm², a triangle of same base & height is cut. Area of triangle = ? 🔺",
      "options": { "A": "32 cm²", "B": "48 cm²", "C": "64 cm²", "D": "96 cm²" },
      "correct_answer": "B"
    },
    {
      "id": 45,
      "difficulty": "hard",
      "question": "A parallelogram's base is 3 times its height. If area is 108 cm², find dimensions. 📊",
      "options": {
        "A": "Base=12 cm, Height=4 cm",
        "B": "Base=18 cm, Height=6 cm",
        "C": "Base=15 cm, Height=5 cm",
        "D": "Base=21 cm, Height=7 cm"
      },
      "correct_answer": "B"
    },
    {
      "id": 46,
      "difficulty": "hard",
      "question": "Two parallelograms: First area 72 cm², base 9 cm. Second has same height but base 12 cm. Area of second? 🔄",
      "options": {
        "A": "84 cm²",
        "B": "90 cm²",
        "C": "96 cm²",
        "D": "108 cm²"
      },
      "correct_answer": "C"
    },
    {
      "id": 47,
      "difficulty": "hard",
      "question": "A parallelogram shaped banner: base 2.5 m, height 1.2 m. Area in m²? 🎌",
      "options": { "A": "2.8 m²", "B": "3.0 m²", "C": "3.2 m²", "D": "3.4 m²" },
      "correct_answer": "B"
    },
    {
      "id": 48,
      "difficulty": "hard",
      "question": "If base decreased by 20% and height increased by 25%, area changes by? 📈",
      "options": { "A": "+5%", "B": "No change", "C": "-5%", "D": "+10%" },
      "correct_answer": "B"
    },
    {
      "id": 41,
      "difficulty": "hard",
      "question": "A parallelogram has area 120 cm². If height is 10 cm, find base. Then if base increased by 2 cm, find new area. 📈",
      "options": {
        "A": "Base=12 cm, New area=132 cm²",
        "B": "Base=12 cm, New area=140 cm²",
        "C": "Base=10 cm, New area=120 cm²",
        "D": "Base=11 cm, New area=130 cm²"
      },
      "correct_answer": "B"
    },
    {
      "id": 50,
      "difficulty": "hard",
      "question": "Parallelogram area 144 cm². Height is ¾ of base. Find base & height. 🔍",
      "options": {
        "A": "Base=8√3 cm, Height=6√3 cm",
        "B": "Base=16 cm, Height=12 cm",
        "C": "Base=18 cm, Height=13.5 cm",
        "D": "Base=12√3 cm, Height=9√3 cm"
      },
      "correct_answer": "A"
    },
    {
      "id": 51,
      "difficulty": "hard",
      "question": "Area = 169 cm². If base:height = 13:1, find height. 📐",
      "options": {
        "A": "√13 cm",
        "B": "13 cm",
        "C": "13/2 cm",
        "D": "13/3 cm"
      },
      "correct_answer": "A"
    },
    {
      "id": 52,
      "difficulty": "hard",
      "question": "A swimming pool shaped parallelogram: base 25 m, height 12 m. Deep end adds triangle of base 25 m, height 3 m. Total area? 🏊",
      "options": {
        "A": "325 m²",
        "B": "337.5 m²",
        "C": "350 m²",
        "D": "362.5 m²"
      },
      "correct_answer": "B"
    },
    {
      "id": 53,
      "difficulty": "hard",
      "question": "If parallelogram area = 2 × triangle area with same base & height, and triangle area = 45 cm², parallelogram area? 🔺",
      "options": { "A": "80 cm²", "B": "85 cm²", "C": "90 cm²", "D": "95 cm²" },
      "correct_answer": "C"
    },
    {
      "id": 54,
      "difficulty": "hard",
      "question": "Base increased from 8 cm to 12 cm, height decreased from 15 cm to 10 cm. Original vs new area? ⚖️",
      "options": {
        "A": "Original larger",
        "B": "New larger",
        "C": "Equal",
        "D": "Can't compare"
      },
      "correct_answer": "C"
    },
    {
      "id": 55,
      "difficulty": "hard",
      "question": "A garden has parallelogram section base 30 m, height 20 m and rectangular section 30 m × 15 m. Total area? 🌷",
      "options": {
        "A": "1000 m²",
        "B": "1050 m²",
        "C": "1100 m²",
        "D": "1150 m²"
      },
      "correct_answer": "B"
    },
    {
      "id": 56,
      "difficulty": "hard",
      "question": "Area = 196 cm². Base is 2.8 times height. Find height rounded to 1 decimal. 🔢",
      "options": { "A": "8.2 cm", "B": "8.4 cm", "C": "8.6 cm", "D": "8.8 cm" },
      "correct_answer": "B"
    },
    {
      "id": 57,
      "difficulty": "hard",
      "question": "Two parallelograms have equal areas. Ratio of bases 3:4, ratio of heights? 📊",
      "options": { "A": "3:4", "B": "4:3", "C": "9:16", "D": "16:9" },
      "correct_answer": "B"
    },
    {
      "id": 58,
      "difficulty": "hard",
      "question": "A room shaped parallelogram: base 7.5 m, height 4.8 m. Carpet costs ₹500/m². Total cost? 💰",
      "options": {
        "A": "₹16,000",
        "B": "₹17,000",
        "C": "₹18,000",
        "D": "₹19,000"
      },
      "correct_answer": "C"
    },
    {
      "id": 59,
      "difficulty": "hard",
      "question": "Parallelogram divided into 2 equal triangles. If one triangle area = 42.5 cm², parallelogram area? 🔺🔺",
      "options": { "A": "80 cm²", "B": "85 cm²", "C": "90 cm²", "D": "95 cm²" },
      "correct_answer": "B"
    },
    {
      "id": 60,
      "difficulty": "hard",
      "question": "Base = 18 cm, height = x cm. Area = 162 cm². Find x. Then if x increased by 2 cm, new area? 📈",
      "options": {
        "A": "x=9 cm, New area=180 cm²",
        "B": "x=8 cm, New area=178 cm²",
        "C": "x=9 cm, New area=198 cm²",
        "D": "x=8 cm, New area=176 cm²"
      },
      "correct_answer": "A"
    }
  ]
}