{
  "title": "Estimating Square Roots - Grade 8 CBSE",
  "total_questions": 100,
  "questions": [
    {"id": 1, "difficulty": "easy", "question": "Between which two integers does √10 lie?", "options": {"A": "2 and 3", "B": "3 and 4", "C": "4 and 5", "D": "1 and 2"}, "correct_answer": "B"},
    {"id": 2, "difficulty": "easy", "question": "Estimate √15 to the nearest whole number.", "options": {"A": "3", "B": "4", "C": "5", "D": "6"}, "correct_answer": "B"},
    {"id": 3, "difficulty": "easy", "question": "√20 is between which consecutive integers?", "options": {"A": "3 and 4", "B": "4 and 5", "C": "5 and 6", "D": "6 and 7"}, "correct_answer": "B"},
    {"id": 4, "difficulty": "easy", "question": "What whole number is closest to √8?", "options": {"A": "2", "B": "3", "C": "4", "D": "5"}, "correct_answer": "B"},
    {"id": 5, "difficulty": "easy", "question": "Between which numbers does √30 lie?", "options": {"A": "4 and 5", "B": "5 and 6", "C": "6 and 7", "D": "7 and 8"}, "correct_answer": "B"},
    {"id": 6, "difficulty": "easy", "question": "Estimate √50 to the nearest integer.", "options": {"A": "5", "B": "6", "C": "7", "D": "8"}, "correct_answer": "C"},
    {"id": 7, "difficulty": "easy", "question": "√18 is between which two whole numbers?", "options": {"A": "3 and 4", "B": "4 and 5", "C": "5 and 6", "D": "6 and 7"}, "correct_answer": "B"},
    {"id": 8, "difficulty": "easy", "question": "What integer is nearest to √24?", "options": {"A": "4", "B": "5", "C": "6", "D": "7"}, "correct_answer": "B"},
    {"id": 9, "difficulty": "easy", "question": "Between which consecutive integers does √40 lie?", "options": {"A": "5 and 6", "B": "6 and 7", "C": "7 and 8", "D": "8 and 9"}, "correct_answer": "B"},
    {"id": 10, "difficulty": "easy", "question": "Estimate √60 to the nearest whole number.", "options": {"A": "6", "B": "7", "C": "8", "D": "9"}, "correct_answer": "B"},
    {"id": 11, "difficulty": "easy", "question": "√12 lies between which numbers?", "options": {"A": "2 and 3", "B": "3 and 4", "C": "4 and 5", "D": "5 and 6"}, "correct_answer": "B"},
    {"id": 12, "difficulty": "easy", "question": "What is the closest integer to √35?", "options": {"A": "5", "B": "6", "C": "7", "D": "8"}, "correct_answer": "B"},
    {"id": 13, "difficulty": "easy", "question": "Between which two integers is √48?", "options": {"A": "5 and 6", "B": "6 and 7", "C": "7 and 8", "D": "8 and 9"}, "correct_answer": "B"},
    {"id": 14, "difficulty": "easy", "question": "Estimate √75 to the nearest whole number.", "options": {"A": "7", "B": "8", "C": "9", "D": "10"}, "correct_answer": "B"},
    {"id": 15, "difficulty": "easy", "question": "√28 is between which consecutive integers?", "options": {"A": "4 and 5", "B": "5 and 6", "C": "6 and 7", "D": "7 and 8"}, "correct_answer": "B"},
    {"id": 16, "difficulty": "easy", "question": "What whole number is nearest to √45?", "options": {"A": "6", "B": "7", "C": "8", "D": "9"}, "correct_answer": "B"},
    {"id": 17, "difficulty": "easy", "question": "Between which numbers does √55 lie?", "options": {"A": "6 and 7", "B": "7 and 8", "C": "8 and 9", "D": "9 and 10"}, "correct_answer": "B"},
    {"id": 18, "difficulty": "easy", "question": "Estimate √65 to the nearest integer.", "options": {"A": "7", "B": "8", "C": "9", "D": "10"}, "correct_answer": "B"},
    {"id": 19, "difficulty": "easy", "question": "√80 is between which two whole numbers?", "options": {"A": "7 and 8", "B": "8 and 9", "C": "9 and 10", "D": "10 and 11"}, "correct_answer": "B"},
    {"id": 20, "difficulty": "easy", "question": "What integer is closest to √90?", "options": {"A": "8", "B": "9", "C": "10", "D": "11"}, "correct_answer": "B"},
    {"id": 21, "difficulty": "medium", "question": "Estimate √150 to the nearest whole number.", "options": {"A": "11", "B": "12", "C": "13", "D": "14"}, "correct_answer": "B"},
    {"id": 22, "difficulty": "medium", "question": "Between which consecutive integers does √200 lie?", "options": {"A": "13 and 14", "B": "14 and 15", "C": "15 and 16", "D": "16 and 17"}, "correct_answer": "B"},
    {"id": 23, "difficulty": "medium", "question": "Estimate √250 to the nearest integer.", "options": {"A": "15", "B": "16", "C": "17", "D": "18"}, "correct_answer": "B"},
    {"id": 24, "difficulty": "medium", "question": "√300 is between which two whole numbers?", "options": {"A": "16 and 17", "B": "17 and 18", "C": "18 and 19", "D": "19 and 20"}, "correct_answer": "B"},
    {"id": 25, "difficulty": "medium", "question": "What is the closest integer to √350?", "options": {"A": "18", "B": "19", "C": "20", "D": "21"}, "correct_answer": "B"},
    {"id": 26, "difficulty": "medium", "question": "Between which numbers does √400 lie?", "options": {"A": "19 and 20", "B": "20 and 21", "C": "21 and 22", "D": "22 and 23"}, "correct_answer": "A"},
    {"id": 27, "difficulty": "medium", "question": "Estimate √450 to the nearest whole number.", "options": {"A": "20", "B": "21", "C": "22", "D": "23"}, "correct_answer": "B"},
    {"id": 28, "difficulty": "medium", "question": "√500 is between which consecutive integers?", "options": {"A": "21 and 22", "B": "22 and 23", "C": "23 and 24", "D": "24 and 25"}, "correct_answer": "B"},
    {"id": 29, "difficulty": "medium", "question": "What whole number is nearest to √550?", "options": {"A": "23", "B": "24", "C": "25", "D": "26"}, "correct_answer": "A"},
    {"id": 30, "difficulty": "medium", "question": "Between which two integers does √600 lie?", "options": {"A": "23 and 24", "B": "24 and 25", "C": "25 and 26", "D": "26 and 27"}, "correct_answer": "B"},
    {"id": 31, "difficulty": "medium", "question": "Estimate √650 to the nearest integer.", "options": {"A": "25", "B": "26", "C": "27", "D": "28"}, "correct_answer": "A"},
    {"id": 32, "difficulty": "medium", "question": "√700 is between which numbers?", "options": {"A": "25 and 26", "B": "26 and 27", "C": "27 and 28", "D": "28 and 29"}, "correct_answer": "B"},
    {"id": 33, "difficulty": "medium", "question": "What is the closest integer to √750?", "options": {"A": "27", "B": "28", "C": "29", "D": "30"}, "correct_answer": "A"},
    {"id": 34, "difficulty": "medium", "question": "Between which consecutive integers does √800 lie?", "options": {"A": "27 and 28", "B": "28 and 29", "C": "29 and 30", "D": "30 and 31"}, "correct_answer": "B"},
    {"id": 35, "difficulty": "medium", "question": "Estimate √850 to the nearest whole number.", "options": {"A": "28", "B": "29", "C": "30", "D": "31"}, "correct_answer": "B"},
    {"id": 36, "difficulty": "medium", "question": "√900 is between which two whole numbers?", "options": {"A": "29 and 30", "B": "30 and 31", "C": "31 and 32", "D": "32 and 33"}, "correct_answer": "A"},
    {"id": 37, "difficulty": "medium", "question": "What integer is nearest to √950?", "options": {"A": "30", "B": "31", "C": "32", "D": "33"}, "correct_answer": "B"},
    {"id": 38, "difficulty": "medium", "question": "Between which numbers does √1000 lie?", "options": {"A": "30 and 31", "B": "31 and 32", "C": "32 and 33", "D": "33 and 34"}, "correct_answer": "B"},
    {"id": 39, "difficulty": "medium", "question": "Estimate √1100 to the nearest integer.", "options": {"A": "32", "B": "33", "C": "34", "D": "35"}, "correct_answer": "B"},
    {"id": 40, "difficulty": "medium", "question": "√1200 is between which consecutive integers?", "options": {"A": "33 and 34", "B": "34 and 35", "C": "35 and 36", "D": "36 and 37"}, "correct_answer": "B"},
    {"id": 41, "difficulty": "medium", "question": "What whole number is closest to √1300?", "options": {"A": "35", "B": "36", "C": "37", "D": "38"}, "correct_answer": "B"},
    {"id": 42, "difficulty": "medium", "question": "Between which two integers does √1400 lie?", "options": {"A": "36 and 37", "B": "37 and 38", "C": "38 and 39", "D": "39 and 40"}, "correct_answer": "B"},
    {"id": 43, "difficulty": "medium", "question": "Estimate √1500 to the nearest whole number.", "options": {"A": "38", "B": "39", "C": "40", "D": "41"}, "correct_answer": "B"},
    {"id": 44, "difficulty": "medium", "question": "√1600 is between which numbers?", "options": {"A": "39 and 40", "B": "40 and 41", "C": "41 and 42", "D": "42 and 43"}, "correct_answer": "A"},
    {"id": 45, "difficulty": "medium", "question": "What is the closest integer to √1700?", "options": {"A": "40", "B": "41", "C": "42", "D": "43"}, "correct_answer": "B"},
    {"id": 46, "difficulty": "medium", "question": "Between which consecutive integers does √1800 lie?", "options": {"A": "41 and 42", "B": "42 and 43", "C": "43 and 44", "D": "44 and 45"}, "correct_answer": "B"},
    {"id": 47, "difficulty": "medium", "question": "Estimate √1900 to the nearest integer.", "options": {"A": "43", "B": "44", "C": "45", "D": "46"}, "correct_answer": "B"},
    {"id": 48, "difficulty": "medium", "question": "√2000 is between which two whole numbers?", "options": {"A": "44 and 45", "B": "45 and 46", "C": "46 and 47", "D": "47 and 48"}, "correct_answer": "A"},
    {"id": 49, "difficulty": "medium", "question": "What integer is nearest to √2100?", "options": {"A": "45", "B": "46", "C": "47", "D": "48"}, "correct_answer": "B"},
    {"id": 50, "difficulty": "medium", "question": "Between which numbers does √2200 lie?", "options": {"A": "46 and 47", "B": "47 and 48", "C": "48 and 49", "D": "49 and 50"}, "correct_answer": "B"},
    {"id": 51, "difficulty": "medium", "question": "Estimate √2300 to the nearest whole number.", "options": {"A": "47", "B": "48", "C": "49", "D": "50"}, "correct_answer": "B"},
    {"id": 52, "difficulty": "medium", "question": "√2400 is between which consecutive integers?", "options": {"A": "48 and 49", "B": "49 and 50", "C": "50 and 51", "D": "51 and 52"}, "correct_answer": "B"},
    {"id": 53, "difficulty": "medium", "question": "What whole number is closest to √2500?", "options": {"A": "49", "B": "50", "C": "51", "D": "52"}, "correct_answer": "B"},
    {"id": 54, "difficulty": "medium", "question": "Between which two integers does √2600 lie?", "options": {"A": "50 and 51", "B": "51 and 52", "C": "52 and 53", "D": "53 and 54"}, "correct_answer": "A"},
    {"id": 55, "difficulty": "medium", "question": "Estimate √2700 to the nearest integer.", "options": {"A": "51", "B": "52", "C": "53", "D": "54"}, "correct_answer": "B"},
    {"id": 56, "difficulty": "medium", "question": "√2800 is between which numbers?", "options": {"A": "52 and 53", "B": "53 and 54", "C": "54 and 55", "D": "55 and 56"}, "correct_answer": "B"},
    {"id": 57, "difficulty": "medium", "question": "What is the closest integer to √2900?", "options": {"A": "53", "B": "54", "C": "55", "D": "56"}, "correct_answer": "B"},
    {"id": 58, "difficulty": "medium", "question": "Between which consecutive integers does √3000 lie?", "options": {"A": "54 and 55", "B": "55 and 56", "C": "56 and 57", "D": "57 and 58"}, "correct_answer": "A"},
    {"id": 59, "difficulty": "medium", "question": "Estimate √3100 to the nearest whole number.", "options": {"A": "55", "B": "56", "C": "57", "D": "58"}, "correct_answer": "B"},
    {"id": 60, "difficulty": "medium", "question": "√3200 is between which two whole numbers?", "options": {"A": "56 and 57", "B": "57 and 58", "C": "58 and 59", "D": "59 and 60"}, "correct_answer": "A"},
    {"id": 61, "difficulty": "medium", "question": "What integer is nearest to √3300?", "options": {"A": "57", "B": "58", "C": "59", "D": "60"}, "correct_answer": "A"},
    {"id": 62, "difficulty": "medium", "question": "Between which numbers does √3400 lie?", "options": {"A": "57 and 58", "B": "58 and 59", "C": "59 and 60", "D": "60 and 61"}, "correct_answer": "B"},
    {"id": 63, "difficulty": "medium", "question": "Estimate √3500 to the nearest integer.", "options": {"A": "59", "B": "60", "C": "61", "D": "62"}, "correct_answer": "A"},
    {"id": 64, "difficulty": "medium", "question": "√3600 is between which consecutive integers?", "options": {"A": "59 and 60", "B": "60 and 61", "C": "61 and 62", "D": "62 and 63"}, "correct_answer": "A"},
    {"id": 65, "difficulty": "medium", "question": "What whole number is closest to √3700?", "options": {"A": "60", "B": "61", "C": "62", "D": "63"}, "correct_answer": "B"},
    {"id": 66, "difficulty": "medium", "question": "Between which two integers does √3800 lie?", "options": {"A": "61 and 62", "B": "62 and 63", "C": "63 and 64", "D": "64 and 65"}, "correct_answer": "A"},
    {"id": 67, "difficulty": "medium", "question": "Estimate √3900 to the nearest whole number.", "options": {"A": "62", "B": "63", "C": "64", "D": "65"}, "correct_answer": "B"},
    {"id": 68, "difficulty": "medium", "question": "√4000 is between which numbers?", "options": {"A": "62 and 63", "B": "63 and 64", "C": "64 and 65", "D": "65 and 66"}, "correct_answer": "B"},
    {"id": 69, "difficulty": "medium", "question": "What is the closest integer to √4100?", "options": {"A": "63", "B": "64", "C": "65", "D": "66"}, "correct_answer": "B"},
    {"id": 70, "difficulty": "medium", "question": "Between which consecutive integers does √4200 lie?", "options": {"A": "64 and 65", "B": "65 and 66", "C": "66 and 67", "D": "67 and 68"}, "correct_answer": "A"},
    {"id": 71, "difficulty": "hard", "question": "Estimate √125 to one decimal place.", "options": {"A": "11.1", "B": "11.2", "C": "11.3", "D": "11.4"}, "correct_answer": "B"},
    {"id": 72, "difficulty": "hard", "question": "√175 to one decimal place is approximately:", "options": {"A": "13.2", "B": "13.3", "C": "13.4", "D": "13.5"}, "correct_answer": "A"},
    {"id": 73, "difficulty": "hard", "question": "Estimate √225 to one decimal place.", "options": {"A": "15.0", "B": "15.1", "C": "15.2", "D": "15.3"}, "correct_answer": "A"},
    {"id": 74, "difficulty": "hard", "question": "√275 to one decimal place is approximately:", "options": {"A": "16.5", "B": "16.6", "C": "16.7", "D": "16.8"}, "correct_answer": "B"},
    {"id": 75, "difficulty": "hard", "question": "Estimate √325 to one decimal place.", "options": {"A": "18.0", "B": "18.1", "C": "18.2", "D": "18.3"}, "correct_answer": "A"},
    {"id": 76, "difficulty": "hard", "question": "√375 to one decimal place is approximately:", "options": {"A": "19.3", "B": "19.4", "C": "19.5", "D": "19.6"}, "correct_answer": "B"},
    {"id": 77, "difficulty": "hard", "question": "Estimate √425 to one decimal place.", "options": {"A": "20.6", "B": "20.7", "C": "20.8", "D": "20.9"}, "correct_answer": "A"},
    {"id": 78, "difficulty": "hard", "question": "√475 to one decimal place is approximately:", "options": {"A": "21.7", "B": "21.8", "C": "21.9", "D": "22.0"}, "correct_answer": "B"},
    {"id": 79, "difficulty": "hard", "question": "Estimate √525 to one decimal place.", "options": {"A": "22.9", "B": "23.0", "C": "23.1", "D": "23.2"}, "correct_answer": "A"},
    {"id": 80, "difficulty": "hard", "question": "√575 to one decimal place is approximately:", "options": {"A": "23.9", "B": "24.0", "C": "24.1", "D": "24.2"}, "correct_answer": "B"},
    {"id": 81, "difficulty": "hard", "question": "Estimate √625 to one decimal place.", "options": {"A": "25.0", "B": "25.1", "C": "25.2", "D": "25.3"}, "correct_answer": "A"},
    {"id": 82, "difficulty": "hard", "question": "√675 to one decimal place is approximately:", "options": {"A": "25.9", "B": "26.0", "C": "26.1", "D": "26.2"}, "correct_answer": "B"},
    {"id": 83, "difficulty": "hard", "question": "Estimate √725 to one decimal place.", "options": {"A": "26.9", "B": "27.0", "C": "27.1", "D": "27.2"}, "correct_answer": "A"},
    {"id": 84, "difficulty": "hard", "question": "√775 to one decimal place is approximately:", "options": {"A": "27.8", "B": "27.9", "C": "28.0", "D": "28.1"}, "correct_answer": "B"},
    {"id": 85, "difficulty": "hard", "question": "Estimate √825 to one decimal place.", "options": {"A": "28.7", "B": "28.8", "C": "28.9", "D": "29.0"}, "correct_answer": "A"},
    {"id": 86, "difficulty": "hard", "question": "√875 to one decimal place is approximately:", "options": {"A": "29.5", "B": "29.6", "C": "29.7", "D": "29.8"}, "correct_answer": "B"},
    {"id": 87, "difficulty": "hard", "question": "Estimate √925 to one decimal place.", "options": {"A": "30.4", "B": "30.5", "C": "30.6", "D": "30.7"}, "correct_answer": "A"},
    {"id": 88, "difficulty": "hard", "question": "√975 to one decimal place is approximately:", "options": {"A": "31.2", "B": "31.3", "C": "31.4", "D": "31.5"}, "correct_answer": "B"},
    {"id": 89, "difficulty": "hard", "question": "Estimate √1025 to one decimal place.", "options": {"A": "32.0", "B": "32.1", "C": "32.2", "D": "32.3"}, "correct_answer": "A"},
    {"id": 90, "difficulty": "hard", "question": "√1075 to one decimal place is approximately:", "options": {"A": "32.7", "B": "32.8", "C": "32.9", "D": "33.0"}, "correct_answer": "B"},
    {"id": 91, "difficulty": "hard", "question": "Estimate √1125 to one decimal place.", "options": {"A": "33.5", "B": "33.6", "C": "33.7", "D": "33.8"}, "correct_answer": "A"},
    {"id": 92, "difficulty": "hard", "question": "√1175 to one decimal place is approximately:", "options": {"A": "34.2", "B": "34.3", "C": "34.4", "D": "34.5"}, "correct_answer": "B"},
    {"id": 93, "difficulty": "hard", "question": "Estimate √1225 to one decimal place.", "options": {"A": "35.0", "B": "35.1", "C": "35.2", "D": "35.3"}, "correct_answer": "A"},
    {"id": 94, "difficulty": "hard", "question": "√1275 to one decimal place is approximately:", "options": {"A": "35.7", "B": "35.8", "C": "35.9", "D": "36.0"}, "correct_answer": "B"},
    {"id": 95, "difficulty": "hard", "question": "Estimate √1325 to one decimal place.", "options": {"A": "36.4", "B": "36.5", "C": "36.6", "D": "36.7"}, "correct_answer": "A"},
    {"id": 96, "difficulty": "hard", "question": "√1375 to one decimal place is approximately:", "options": {"A": "37.0", "B": "37.1", "C": "37.2", "D": "37.3"}, "correct_answer": "B"},
    {"id": 97, "difficulty": "hard", "question": "Estimate √1425 to one decimal place.", "options": {"A": "37.7", "B": "37.8", "C": "37.9", "D": "38.0"}, "correct_answer": "A"},
    {"id": 98, "difficulty": "hard", "question": "√1475 to one decimal place is approximately:", "options": {"A": "38.4", "B": "38.5", "C": "38.6", "D": "38.7"}, "correct_answer": "B"},
    {"id": 99, "difficulty": "hard", "question": "Estimate √1525 to one decimal place.", "options": {"A": "39.0", "B": "39.1", "C": "39.2", "D": "39.3"}, "correct_answer": "A"},
    {"id": 100, "difficulty": "hard", "question": "√1575 to one decimal place is approximately:", "options": {"A": "39.7", "B": "39.8", "C": "39.9", "D": "40.0"}, "correct_answer": "B"}
  ]
}