{
  "title": "Square_roots_of_decimals(Squares_and_Square_Roots) - Grade 8 ICSE",
  "total_questions": 60,
  "questions": [
    {"id": 1, "difficulty": "easy", "question": "√0.04 = ? 🟦", "options": {"A": "0.2", "B": "0.02", "C": "0.4", "D": "0.04"}, "correct_answer": "A"},
    {"id": 2, "difficulty": "easy", "question": "What is √0.25? ✨", "options": {"A": "0.5", "B": "0.05", "C": "0.25", "D": "0.025"}, "correct_answer": "A"},
    {"id": 3, "difficulty": "easy", "question": "Find √0.81 🤔", "options": {"A": "0.9", "B": "0.09", "C": "0.81", "D": "0.081"}, "correct_answer": "A"},
    {"id": 4, "difficulty": "easy", "question": "√1.21 = ? 📐", "options": {"A": "1.1", "B": "1.01", "C": "11", "D": "0.11"}, "correct_answer": "A"},
    {"id": 5, "difficulty": "easy", "question": "What is √0.49? 🌟", "options": {"A": "0.6", "B": "0.07", "C": "0.7", "D": "0.07"}, "correct_answer": "C"},
    {"id": 6, "difficulty": "easy", "question": "Find √0.64 🎯", "options": {"A": "0.6", "B": "0.8", "C": "0.08", "D": "0.86"}, "correct_answer": "B"},
    {"id": 7, "difficulty": "easy", "question": "√0.36 = ? 🔲", "options": {"A": "0.4", "B": "0.6", "C": "0.06", "D": "0.036"}, "correct_answer": "B"},
    {"id": 8, "difficulty": "easy", "question": "What is √0.01? 🔢", "options": {"A": "0.1", "B": "0.01", "C": "0.001", "D": "1"}, "correct_answer": "A"},
    {"id": 9, "difficulty": "easy", "question": "Find √1.44 🧮", "options": {"A": "1.2", "B": "12", "C": "0.12", "D": "1.02"}, "correct_answer": "A"},
    {"id": 10, "difficulty": "easy", "question": "√0.09 = ? 🎨", "options": {"A": "0.3", "B": "0.03", "C": "0.9", "D": "0.09"}, "correct_answer": "A"},
    {"id": 11, "difficulty": "easy", "question": "What is √2.25? 📏", "options": {"A": "1.4", "B": "1.5", "C": "15", "D": "0.15"}, "correct_answer": "B"},
    {"id": 12, "difficulty": "easy", "question": "Find √0.16 🔳", "options": {"A": "0.4", "B": "0.04", "C": "0.16", "D": "0.016"}, "correct_answer": "A"},
    {"id": 13, "difficulty": "easy", "question": "√0.0004 = ? 📊", "options": {"A": "0.002", "B": "0.02", "C": "0.2", "D": "0.0002"}, "correct_answer": "B"},
    {"id": 14, "difficulty": "easy", "question": "What is √6.25? 🧩", "options": {"A": "2.4", "B": "2.5", "C": "25", "D": "0.25"}, "correct_answer": "B"},
    {"id": 15, "difficulty": "easy", "question": "Find √0.0036 🌈", "options": {"A": "0.06", "B": "0.006", "C": "0.6", "D": "0.0006"}, "correct_answer": "A"},
    {"id": 16, "difficulty": "easy", "question": "√0.0225 = ? ⚡", "options": {"A": "0.15", "B": "0.015", "C": "1.5", "D": "0.0015"}, "correct_answer": "A"},
    {"id": 17, "difficulty": "easy", "question": "What is √0.0081? 🚀", "options": {"A": "0.09", "B": "0.9", "C": "0.009", "D": "0.0009"}, "correct_answer": "A"},
    {"id": 18, "difficulty": "easy", "question": "Find √12.25 🎲", "options": {"A": "3.4", "B": "3.5", "C": "35", "D": "0.35"}, "correct_answer": "B"},
    {"id": 19, "difficulty": "easy", "question": "√0.0001 = ? 🔍", "options": {"A": "0.01", "B": "0.001", "C": "0.1", "D": "0.0001"}, "correct_answer": "A"},
    {"id": 20, "difficulty": "easy", "question": "What is √0.0625? 💡", "options": {"A": "0.25", "B": "0.025", "C": "0.5", "D": "0.05"}, "correct_answer": "A"},
    {"id": 21, "difficulty": "medium", "question": "√0.0049 = ? 🤓", "options": {"A": "0.07", "B": "0.7", "C": "0.007", "D": "0.0007"}, "correct_answer": "A"},
    {"id": 22, "difficulty": "medium", "question": "Find √0.0144 🔑", "options": {"A": "0.12", "B": "1.2", "C": "0.012", "D": "0.0012"}, "correct_answer": "A"},
    {"id": 23, "difficulty": "medium", "question": "√0.000025 = ? 🧠", "options": {"A": "0.005", "B": "0.05", "C": "0.0005", "D": "0.5"}, "correct_answer": "A"},
    {"id": 24, "difficulty": "medium", "question": "What is √0.0289? 📚", "options": {"A": "0.17", "B": "0.017", "C": "1.7", "D": "0.0017"}, "correct_answer": "A"},
    {"id": 25, "difficulty": "medium", "question": "Find √0.0009 ✏️", "options": {"A": "0.03", "B": "0.003", "C": "0.3", "D": "0.0003"}, "correct_answer": "A"},
    {"id": 26, "difficulty": "medium", "question": "√0.0324 = ? 🎯", "options": {"A": "0.18", "B": "0.018", "C": "1.8", "D": "0.0018"}, "correct_answer": "A"},
    {"id": 27, "difficulty": "medium", "question": "What is √0.1024? 🔢", "options": {"A": "0.32", "B": "3.2", "C": "0.032", "D": "0.0032"}, "correct_answer": "A"},
    {"id": 28, "difficulty": "medium", "question": "Find √0.00000144 ⚖️", "options": {"A": "0.0012", "B": "0.012", "C": "0.12", "D": "0.00012"}, "correct_answer": "A"},
    {"id": 29, "difficulty": "medium", "question": "√0.2025 = ? 🧮", "options": {"A": "0.45", "B": "4.5", "C": "0.045", "D": "0.0045"}, "correct_answer": "A"},
    {"id": 30, "difficulty": "medium", "question": "What is √0.0016? 🌟", "options": {"A": "0.04", "B": "0.004", "C": "0.4", "D": "0.0004"}, "correct_answer": "A"},
    {"id": 31, "difficulty": "medium", "question": "Find √1.69 🔲", "options": {"A": "1.3", "B": "13", "C": "0.13", "D": "1.03"}, "correct_answer": "A"},
    {"id": 32, "difficulty": "medium", "question": "√0.000036 = ? 📐", "options": {"A": "0.006", "B": "0.06", "C": "0.0006", "D": "0.6"}, "correct_answer": "A"},
    {"id": 33, "difficulty": "medium", "question": "What is √0.4225? 🎨", "options": {"A": "0.65", "B": "6.5", "C": "0.065", "D": "0.0065"}, "correct_answer": "A"},
    {"id": 34, "difficulty": "medium", "question": "Find √0.000081 🚀", "options": {"A": "0.009", "B": "0.09", "C": "0.0009", "D": "0.9"}, "correct_answer": "A"},
    {"id": 35, "difficulty": "medium", "question": "√0.0064 = ? 💡", "options": {"A": "0.08", "B": "0.8", "C": "0.008", "D": "0.0008"}, "correct_answer": "A"},
    {"id": 36, "difficulty": "medium", "question": "What is √0.00000025? 🔬", "options": {"A": "0.0005", "B": "0.005", "C": "0.05", "D": "0.5"}, "correct_answer": "A"},
    {"id": 37, "difficulty": "medium", "question": "Find √0.1296 📈", "options": {"A": "0.36", "B": "3.6", "C": "0.036", "D": "0.0036"}, "correct_answer": "A"},
    {"id": 38, "difficulty": "medium", "question": "√0.000004 = ? 📉", "options": {"A": "0.002", "B": "0.02", "C": "0.0002", "D": "0.2"}, "correct_answer": "A"},
    {"id": 39, "difficulty": "medium", "question": "What is √0.3025? 🧩", "options": {"A": "0.55", "B": "5.5", "C": "0.055", "D": "0.0055"}, "correct_answer": "A"},
    {"id": 40, "difficulty": "medium", "question": "Find √0.00000016 🎲", "options": {"A": "0.0004", "B": "0.004", "C": "0.04", "D": "0.4"}, "correct_answer": "A"},
    {"id": 41, "difficulty": "hard", "question": "√(0.25 + 0.36) = ? ➕", "options": {"A": "0.61", "B": "0.781", "C": "0.9", "D": "1.1"}, "correct_answer": "B"},
    {"id": 42, "difficulty": "hard", "question": "If √x = 0.12, then x = ? 🧠", "options": {"A": "0.0144", "B": "0.144", "C": "1.44", "D": "14.4"}, "correct_answer": "A"},
    {"id": 43, "difficulty": "hard", "question": "√(1.44 ÷ 0.09) = ? ➗", "options": {"A": "4", "B": "0.4", "C": "40", "D": "0.04"}, "correct_answer": "A"},
    {"id": 44, "difficulty": "hard", "question": "Which is greater: √0.49 or 0.7? ⚖️", "options": {"A": "√0.49", "B": "0.7", "C": "Equal", "D": "Cannot compare"}, "correct_answer": "C"},
    {"id": 45, "difficulty": "hard", "question": "√(0.64 × 0.25) = ? ✖️", "options": {"A": "0.4", "B": "0.04", "C": "0.16", "D": "0.016"}, "correct_answer": "A"},
    {"id": 46, "difficulty": "hard", "question": "If √0.0009 = 0.03, then √0.09 = ? 🔄", "options": {"A": "0.3", "B": "3", "C": "30", "D": "0.003"}, "correct_answer": "A"},
    {"id": 47, "difficulty": "hard", "question": "√(2.25 - 1.44) = ? ➖", "options": {"A": "0.9", "B": "0.81", "C": "0.09", "D": "0.081"}, "correct_answer": "A"},
    {"id": 48, "difficulty": "hard", "question": "Which is smallest: √0.04, √0.0049, √0.0004? 📊", "options": {"A": "√0.04", "B": "√0.0049", "C": "√0.0004", "D": "All equal"}, "correct_answer": "C"},
    {"id": 49, "difficulty": "hard", "question": "√(0.01 + 0.09 + 0.16) = ? 🔢", "options": {"A": "0.26", "B": "0.51", "C": "0.36", "D": "0.6"}, "correct_answer": "B"},
    {"id": 50, "difficulty": "hard", "question": "If √x = 1.5, and x is a decimal, what is x? ❓", "options": {"A": "0.225", "B": "2.25", "C": "22.5", "D": "225"}, "correct_answer": "B"},
    {"id": 51, "difficulty": "hard", "question": "√(0.0081 ÷ 0.09) = ? 🧮", "options": {"A": "0.3", "B": "0.03", "C": "0.9", "D": "0.09"}, "correct_answer": "A"},
    {"id": 52, "difficulty": "hard", "question": "Arrange in ascending: √0.16, 0.5, √0.25, 0.4 📈", "options": {"A": "0.4, √0.16, 0.5, √0.25", "B": "√0.16, 0.4, √0.25, 0.5", "C": "0.4, √0.25, √0.16, 0.5", "D": "√0.16, 0.4, 0.5, √0.25"}, "correct_answer": "B"},
    {"id": 53, "difficulty": "hard", "question": "√0.000025 × √10000 = ? ⚡", "options": {"A": "0.05", "B": "0.5", "C": "5", "D": "50"}, "correct_answer": "B"},
    {"id": 54, "difficulty": "hard", "question": "The square of 0.15 is? 🎯", "options": {"A": "0.0225", "B": "0.225", "C": "2.25", "D": "22.5"}, "correct_answer": "A"},
    {"id": 55, "difficulty": "hard", "question": "√(0.49 + √0.09) = ? ➕🔲", "options": {"A": "0.7", "B": "0.8", "C": "0.9", "D": "1.0"}, "correct_answer": "B"},
    {"id": 56, "difficulty": "hard", "question": "If √0.0004 = 0.02, what is √0.04? 🔄", "options": {"A": "0.2", "B": "2", "C": "0.002", "D": "0.02"}, "correct_answer": "A"},
    {"id": 57, "difficulty": "hard", "question": "√(1.69 - 0.25) = ? ➖", "options": {"A": "1.2", "B": "1.44", "C": "1.4", "D": "1.04"}, "correct_answer": "A"},
    {"id": 58, "difficulty": "hard", "question": "Which is largest: 0.9, √0.81, √0.85? 📊", "options": {"A": "0.9", "B": "√0.81", "C": "√0.85", "D": "All equal"}, "correct_answer": "C"},
    {"id": 59, "difficulty": "hard", "question": "√(0.0625 × 0.64) = ? ✖️", "options": {"A": "0.2", "B": "0.02", "C": "0.04", "D": "0.4"}, "correct_answer": "A"},
    {"id": 60, "difficulty": "hard", "question": "If the area of a square is 0.81 cm², its side is? 🔳", "options": {"A": "0.9 cm", "B": "9 cm", "C": "0.09 cm", "D": "0.009 cm"}, "correct_answer": "A"}
  ]
}