{
  "title": "Algebraic Expressions - Grade 7 ICSE",
  "total_questions": 60,
  "questions": [
    {
      "id": 1,
      "difficulty": "easy",
      "question": "Identify the coefficient in 7x 🍎",
      "options": { "A": "7", "B": "x", "C": "7x", "D": "1" },
      "correct_answer": "A"
    },
    {
      "id": 2,
      "difficulty": "easy",
      "question": "How many terms are in '3a + 5b'? 🎈",
      "options": { "A": "1", "B": "2", "C": "3", "D": "4" },
      "correct_answer": "B"
    },
    {
      "id": 3,
      "difficulty": "easy",
      "question": "What is the constant in '2y + 9'? 🍭",
      "options": { "A": "2", "B": "y", "C": "9", "D": "2y" },
      "correct_answer": "C"
    },
    {
      "id": 4,
      "difficulty": "easy",
      "question": "Identify the variable in '10p' 🎯",
      "options": { "A": "10", "B": "p", "C": "10p", "D": "0" },
      "correct_answer": "B"
    },
    {
      "id": 5,
      "difficulty": "easy",
      "question": "Is '5' an algebraic expression? 🧸",
      "options": { "A": "Yes", "B": "No", "C": "Sometimes", "D": "Maybe" },
      "correct_answer": "A"
    },
    {
      "id": 6,
      "difficulty": "easy",
      "question": "Write expression for: 5 more than k 🚀",
      "options": { "A": "5k", "B": "k + 5", "C": "k - 5", "D": "k / 5" },
      "correct_answer": "B"
    },
    {
      "id": 7,
      "difficulty": "easy",
      "question": "What is 'twice a number m'? 🧩",
      "options": { "A": "m + 2", "B": "2m", "C": "m/2", "D": "m²" },
      "correct_answer": "B"
    },
    {
      "id": 8,
      "difficulty": "easy",
      "question": "Identify like terms for 4n: 🎨",
      "options": { "A": "4", "B": "6n", "C": "n²", "D": "5m" },
      "correct_answer": "B"
    },
    {
      "id": 9,
      "difficulty": "easy",
      "question": "The term without variable is called? 🍦",
      "options": {
        "A": "Coefficient",
        "B": "Constant",
        "C": "Term",
        "D": "Variable"
      },
      "correct_answer": "B"
    },
    {
      "id": 10,
      "difficulty": "easy",
      "question": "Expression for 'sum of t and 8' 🎭",
      "options": { "A": "8t", "B": "t - 8", "C": "t + 8", "D": "t / 8" },
      "correct_answer": "C"
    },
    {
      "id": 11,
      "difficulty": "easy",
      "question": "Coefficient of y in '10y' is? 🦋",
      "options": { "A": "y", "B": "10", "C": "10y", "D": "0" },
      "correct_answer": "B"
    },
    {
      "id": 12,
      "difficulty": "easy",
      "question": "Is 'x + y = 5' an expression? 🏀",
      "options": { "A": "Yes", "B": "No", "C": "Can't say", "D": "Both" },
      "correct_answer": "B"
    },
    {
      "id": 13,
      "difficulty": "easy",
      "question": "'Product of 7 and z' is? 🍪",
      "options": { "A": "7 + z", "B": "7 - z", "C": "7z", "D": "z / 7" },
      "correct_answer": "C"
    },
    {
      "id": 14,
      "difficulty": "easy",
      "question": "Number of terms in 'a'? 🧸",
      "options": { "A": "0", "B": "1", "C": "2", "D": "3" },
      "correct_answer": "B"
    },
    {
      "id": 15,
      "difficulty": "easy",
      "question": "Constant in '3.5d + 2.1' 🍩",
      "options": { "A": "3.5", "B": "d", "C": "2.1", "D": "3.5d" },
      "correct_answer": "C"
    },
    {
      "id": 16,
      "difficulty": "easy",
      "question": "Expression for 'r decreased by 4' 🪁",
      "options": { "A": "4r", "B": "r + 4", "C": "r - 4", "D": "r ÷ 4" },
      "correct_answer": "C"
    },
    {
      "id": 17,
      "difficulty": "easy",
      "question": "Like term for 2ab is? 🐛",
      "options": { "A": "2a", "B": "3ab", "C": "2b", "D": "ab²" },
      "correct_answer": "B"
    },
    {
      "id": 18,
      "difficulty": "easy",
      "question": "Is 1/2 x an expression? 🌼",
      "options": { "A": "Yes", "B": "No", "C": "Equation", "D": "None" },
      "correct_answer": "A"
    },
    {
      "id": 19,
      "difficulty": "easy",
      "question": "'8 less than w' is? 🎠",
      "options": { "A": "8w", "B": "w + 8", "C": "w - 8", "D": "8 - w" },
      "correct_answer": "C"
    },
    {
      "id": 20,
      "difficulty": "easy",
      "question": "Coefficient of p in 'p' is? 🥇",
      "options": { "A": "0", "B": "1", "C": "p", "D": "2" },
      "correct_answer": "B"
    },
    {
      "id": 21,
      "difficulty": "medium",
      "question": "Form expression: 3 times x plus 5 🦉",
      "options": { "A": "3x + 5", "B": "3(x+5)", "C": "x + 15", "D": "8x" },
      "correct_answer": "A"
    },
    {
      "id": 22,
      "difficulty": "medium",
      "question": "Terms in '5m² + 2mn - n²'? 🌈",
      "options": { "A": "2", "B": "3", "C": "4", "D": "5" },
      "correct_answer": "B"
    },
    {
      "id": 23,
      "difficulty": "medium",
      "question": "Coefficient of x² in '7x²'? 🧮",
      "options": { "A": "x²", "B": "7", "C": "7x", "D": "14" },
      "correct_answer": "B"
    },
    {
      "id": 24,
      "difficulty": "medium",
      "question": "Is 4/y an algebraic expression? 🚴",
      "options": { "A": "Yes", "B": "No", "C": "Only if y=1", "D": "Maybe" },
      "correct_answer": "A"
    },
    {
      "id": 25,
      "difficulty": "medium",
      "question": "'Half of k increased by 3' 🍉",
      "options": {
        "A": "(k/2) + 3",
        "B": "2k + 3",
        "C": "(k+3)/2",
        "D": "k + 6"
      },
      "correct_answer": "A"
    },
    {
      "id": 26,
      "difficulty": "medium",
      "question": "Identify unlike term for 5pq: 🏓",
      "options": { "A": "2qp", "B": "7pq", "C": "5p", "D": "10pq" },
      "correct_answer": "C"
    },
    {
      "id": 27,
      "difficulty": "medium",
      "question": "Constant term in '0.4t² - 2t + 1.5'? 🎸",
      "options": { "A": "0.4", "B": "-2", "C": "1.5", "D": "t" },
      "correct_answer": "C"
    },
    {
      "id": 28,
      "difficulty": "medium",
      "question": "Expression: Sum of squares of a and b 🧭",
      "options": {
        "A": "a² + b²",
        "B": "(a+b)²",
        "C": "2a + 2b",
        "D": "a + b²"
      },
      "correct_answer": "A"
    },
    {
      "id": 29,
      "difficulty": "medium",
      "question": "Coefficient of ab in '10ab'? 🥨",
      "options": { "A": "a", "B": "b", "C": "10", "D": "ab" },
      "correct_answer": "C"
    },
    {
      "id": 30,
      "difficulty": "medium",
      "question": "Number of terms in 'x + y + z + 10'? 🎪",
      "options": { "A": "3", "B": "4", "C": "5", "D": "2" },
      "correct_answer": "B"
    },
    {
      "id": 31,
      "difficulty": "medium",
      "question": "Form: 7 subtracted from product of p and q 🍕",
      "options": { "A": "7 - pq", "B": "pq - 7", "C": "7pq", "D": "p(q-7)" },
      "correct_answer": "B"
    },
    {
      "id": 32,
      "difficulty": "medium",
      "question": "Like terms for 3x²y? ⚽",
      "options": { "A": "3xy²", "B": "5x²y", "C": "x²y²", "D": "3x" },
      "correct_answer": "B"
    },
    {
      "id": 33,
      "difficulty": "medium",
      "question": "Expression for 'perimeter of square side s'? 🍯",
      "options": { "A": "4 + s", "B": "4s", "C": "s²", "D": "2s" },
      "correct_answer": "B"
    },
    {
      "id": 34,
      "difficulty": "medium",
      "question": "Identify constant: (1/2)r - (1/3) 🪐",
      "options": {
        "A": "1/2",
        "B": "r",
        "C": "-1/3",
        "D": "No constant"
      },
      "correct_answer": "C"
    },
    {
      "id": 35,
      "difficulty": "medium",
      "question": "'Quotient of t and 4' is? 🎁",
      "options": { "A": "4t", "B": "t + 4", "C": "t - 4", "D": "t/4" },
      "correct_answer": "D"
    },
    {
      "id": 36,
      "difficulty": "medium",
      "question": "Terms with x in '5x + 2y - x + 7'? 🍬",
      "options": {
        "A": "5x and 2y",
        "B": "5x and -x",
        "C": "2y and 7",
        "D": "5x only"
      },
      "correct_answer": "B"
    },
    {
      "id": 37,
      "difficulty": "medium",
      "question": "Expression: Age in 5 years if now 'a' years 🎷",
      "options": { "A": "5a", "B": "a - 5", "C": "a + 5", "D": "a/5" },
      "correct_answer": "C"
    },
    {
      "id": 38,
      "difficulty": "medium",
      "question": "Coefficient of m in '-m'? 🛸",
      "options": { "A": "0", "B": "1", "C": "-1", "D": "m" },
      "correct_answer": "C"
    },
    {
      "id": 39,
      "difficulty": "medium",
      "question": "Is '3 = 3' an algebraic expression? 🥁",
      "options": { "A": "Yes", "B": "No", "C": "Numerical", "D": "Both A & C" },
      "correct_answer": "B"
    },
    {
      "id": 40,
      "difficulty": "medium",
      "question": "'2 times sum of n and 8' 🍍",
      "options": {
        "A": "2n + 8",
        "B": "2(n+8)",
        "C": "n + 16",
        "D": "2n + 16"
      },
      "correct_answer": "B"
    },
    {
      "id": 41,
      "difficulty": "hard",
      "question": "Form expression: Area of rectangle l by b 🧩🔥",
      "options": { "A": "2(l+b)", "B": "lb", "C": "l + b", "D": "l/b" },
      "correct_answer": "B"
    },
    {
      "id": 42,
      "difficulty": "hard",
      "question": "Simplify and identify terms: 4x² - 3x + x² 🚀🌟",
      "options": {
        "A": "5x² - 3x (2 terms)",
        "B": "5x² + 3x (2 terms)",
        "C": "4x² - 3x + x² (3 terms)",
        "D": "x² - 3x (2 terms)"
      },
      "correct_answer": "A"
    },
    {
      "id": 43,
      "difficulty": "hard",
      "question": "Expression for 'average of p, q, r' 🏆🎯",
      "options": {
        "A": "p + q + r",
        "B": "(p+q+r)/3",
        "C": "3(p+q+r)",
        "D": "(pqr)/3"
      },
      "correct_answer": "B"
    },
    {
      "id": 44,
      "difficulty": "hard",
      "question": "Coefficient of x in ' (2/3)x '? 🧠💡",
      "options": { "A": "x", "B": "2/3", "C": "3/2", "D": "0.67" },
      "correct_answer": "B"
    },
    {
      "id": 45,
      "difficulty": "hard",
      "question": "Form: Cost of n pens at ₹m each 🧸📐",
      "options": { "A": "n + m", "B": "n - m", "C": "mn", "D": "n/m" },
      "correct_answer": "C"
    },
    {
      "id": 46,
      "difficulty": "hard",
      "question": "Identify all constants in '0.5a² - 2b + π + 7' 🍕🤔",
      "options": { "A": "0.5, -2", "B": "π, 7", "C": "0.5, 7", "D": "a², b" },
      "correct_answer": "B"
    },
    {
      "id": 47,
      "difficulty": "hard",
      "question": "Expression: Speed if distance d km in t hours 🏦📊",
      "options": { "A": "d + t", "B": "d - t", "C": "d × t", "D": "d / t" },
      "correct_answer": "D"
    },
    {
      "id": 48,
      "difficulty": "hard",
      "question": "Like terms for ' -xy² '? 🎨🎭",
      "options": {
        "A": "x²y",
        "B": "2xy²",
        "C": "-x²y²",
        "D": "y²"
      },
      "correct_answer": "B"
    },
    {
      "id": 49,
      "difficulty": "hard",
      "question": "Form: 5 less than twice cube of z 🍦🔢",
      "options": {
        "A": "2z³ - 5",
        "B": "5 - 2z³",
        "C": "2z - 5",
        "D": "(2z)³ - 5"
      },
      "correct_answer": "A"
    },
    {
      "id": 50,
      "difficulty": "hard",
      "question": "Number of terms after simplifying 3a+2b-a+4? 🪁🧵",
      "options": { "A": "2", "B": "3", "C": "4", "D": "1" },
      "correct_answer": "B"
    },
    {
      "id": 51,
      "difficulty": "hard",
      "question": "Expression: Simple interest ₹P at R% for T years 🌌✨",
      "options": {
        "A": "PRT",
        "B": "PRT/100",
        "C": "P + RT",
        "D": "(P+R+T)/100"
      },
      "correct_answer": "B"
    },
    {
      "id": 52,
      "difficulty": "hard",
      "question": "Coefficient of x in ' x - (x/5) '? 🚴‍♂️📉",
      "options": { "A": "1", "B": "4/5", "C": "1/5", "D": "0" },
      "correct_answer": "B"
    },
    {
      "id": 53,
      "difficulty": "hard",
      "question": "Form: nth odd number (n=1,2,3...) 🍯🎲",
      "options": { "A": "n", "B": "n+1", "C": "2n", "D": "2n - 1" },
      "correct_answer": "D"
    },
    {
      "id": 54,
      "difficulty": "hard",
      "question": "Constant term in ' (√2)x + √3 '? 🧮🧩",
      "options": { "A": "√2", "B": "x", "C": "√3", "D": "No constant" },
      "correct_answer": "C"
    },
    {
      "id": 55,
      "difficulty": "hard",
      "question": "Expression: Cost if book ₹x and pen ₹y less 🥨🔑",
      "options": { "A": "x + y", "B": "x - y", "C": "xy", "D": "y - x" },
      "correct_answer": "B"
    },
    {
      "id": 56,
      "difficulty": "hard",
      "question": "Like terms for ' -0.2a²b '? 🎸🎶",
      "options": { "A": "0.2ab²", "B": "5a²b", "C": "a²b²", "D": "-2ab" },
      "correct_answer": "B"
    },
    {
      "id": 57,
      "difficulty": "hard",
      "question": "Form: Area of triangle base b, height h 🍉⚖️",
      "options": { "A": "bh", "B": "(1/2)bh", "C": "2bh", "D": "b + h" },
      "correct_answer": "B"
    },
    {
      "id": 58,
      "difficulty": "hard",
      "question": "Number of terms in ' 1 + 2/x + x ' (x≠0)? 🍍🏁",
      "options": {
        "A": "2",
        "B": "3",
        "C": "1",
        "D": "Cannot form expression"
      },
      "correct_answer": "B"
    },
    {
      "id": 59,
      "difficulty": "hard",
      "question": "Expression: 3 consecutive integers starting at n 🪐🧠",
      "options": {
        "A": "n, n, n",
        "B": "n, n+1, n+2",
        "C": "n, 2n, 3n",
        "D": "n, n+2, n+4"
      },
      "correct_answer": "B"
    },
    {
      "id": 60,
      "difficulty": "hard",
      "question": "Coefficient of y in ' (1/4) - 2y + 3y² '? 🏀🎭",
      "options": { "A": "-2", "B": "1/4", "C": "3", "D": "y" },
      "correct_answer": "A"
    }
  ]
}