{
  "title": "Linear Equations in One Variable - Grade 8 ICSE",
  "total_questions": 60,
  "questions": [
    {
      "id": 1,
      "difficulty": "easy",
      "question": "Solve: x + 5 = 12 ➕",
      "options": { "A": "7", "B": "17", "C": "-7", "D": "6" },
      "correct_answer": "A"
    },
    {
      "id": 2,
      "difficulty": "easy",
      "question": "Find x: x - 3 = 9 ➖",
      "options": { "A": "12", "B": "6", "C": "-6", "D": "3" },
      "correct_answer": "A"
    },
    {
      "id": 3,
      "difficulty": "easy",
      "question": "Solve: 2x = 16 ✖️",
      "options": { "A": "8", "B": "14", "C": "18", "D": "32" },
      "correct_answer": "A"
    },
    {
      "id": 4,
      "difficulty": "easy",
      "question": "What is x if x/4 = 3? ➗",
      "options": { "A": "12", "B": "7", "C": "1", "D": "3/4" },
      "correct_answer": "A"
    },
    {
      "id": 5,
      "difficulty": "easy",
      "question": "Solve: 3x + 2 = 14 🧮",
      "options": { "A": "4", "B": "12", "C": "5", "D": "16/3" },
      "correct_answer": "A"
    },
    {
      "id": 6,
      "difficulty": "easy",
      "question": "Find x: 5x - 7 = 18 🔍",
      "options": { "A": "5", "B": "11", "C": "2.2", "D": "25" },
      "correct_answer": "A"
    },
    {
      "id": 7,
      "difficulty": "easy",
      "question": "Solve: x/5 = 10 🎯",
      "options": { "A": "50", "B": "2", "C": "15", "D": "5/10" },
      "correct_answer": "A"
    },
    {
      "id": 8,
      "difficulty": "easy",
      "question": "What is x? 7 = x - 4 🔄",
      "options": { "A": "11", "B": "3", "C": "28", "D": "-3" },
      "correct_answer": "A"
    },
    {
      "id": 9,
      "difficulty": "easy",
      "question": "Solve: 4x + 1 = 13 ✨",
      "options": { "A": "3", "B": "12", "C": "14", "D": "3.5" },
      "correct_answer": "A"
    },
    {
      "id": 10,
      "difficulty": "easy",
      "question": "Find x: 9 - x = 2 🧩",
      "options": { "A": "7", "B": "11", "C": "-7", "D": "9/2" },
      "correct_answer": "A"
    },
    {
      "id": 11,
      "difficulty": "easy",
      "question": "Solve: 2(x + 3) = 10 📐",
      "options": { "A": "2", "B": "4", "C": "7", "D": "5" },
      "correct_answer": "A"
    },
    {
      "id": 12,
      "difficulty": "easy",
      "question": "What is x? 3x/2 = 6 🍰",
      "options": { "A": "4", "B": "9", "C": "12", "D": "1" },
      "correct_answer": "A"
    },
    {
      "id": 13,
      "difficulty": "easy",
      "question": "Solve: 0.5x = 4 🎪",
      "options": { "A": "8", "B": "2", "C": "4.5", "D": "0.125" },
      "correct_answer": "A"
    },
    {
      "id": 14,
      "difficulty": "easy",
      "question": "Find x: x + 1/2 = 3/2 🧲",
      "options": { "A": "1", "B": "2", "C": "1/2", "D": "3/4" },
      "correct_answer": "A"
    },
    {
      "id": 15,
      "difficulty": "easy",
      "question": "Solve: 15 = 3x ⚖️",
      "options": { "A": "5", "B": "45", "C": "12", "D": "18" },
      "correct_answer": "A"
    },
    {
      "id": 16,
      "difficulty": "easy",
      "question": "What is x? 8 - 2x = 0 ❄️",
      "options": { "A": "4", "B": "8", "C": "6", "D": "-4" },
      "correct_answer": "A"
    },
    {
      "id": 17,
      "difficulty": "easy",
      "question": "Solve: x/3 + 1 = 4 🪀",
      "options": { "A": "9", "B": "15", "C": "5", "D": "1" },
      "correct_answer": "A"
    },
    {
      "id": 18,
      "difficulty": "easy",
      "question": "Find x: 2.5x = 10 📏",
      "options": { "A": "4", "B": "25", "C": "12.5", "D": "7.5" },
      "correct_answer": "A"
    },
    {
      "id": 19,
      "difficulty": "easy",
      "question": "Solve: 3(x - 1) = 12 ✅",
      "options": { "A": "5", "B": "3", "C": "4", "D": "15" },
      "correct_answer": "A"
    },
    {
      "id": 20,
      "difficulty": "easy",
      "question": "What is x? 7x = 7x + 1? 🤔",
      "options": {
        "A": "No solution",
        "B": "0",
        "C": "1",
        "D": "Infinite solutions"
      },
      "correct_answer": "A"
    },
    {
      "id": 21,
      "difficulty": "medium",
      "question": "Solve: 3x + 5 = 2x + 10 🚀",
      "options": { "A": "5", "B": "15", "C": "-5", "D": "3" },
      "correct_answer": "A"
    },
    {
      "id": 22,
      "difficulty": "medium",
      "question": "Find x: 4(2x - 1) = 3(x + 5) 🏗️",
      "options": {
        "A": "19/5",
        "B": "4",
        "C": "11/5",
        "D": "-19/5"
      },
      "correct_answer": "A"
    },
    {
      "id": 23,
      "difficulty": "medium",
      "question": "Solve: (x/3) + (x/4) = 7 ➕",
      "options": {
        "A": "12",
        "B": "21",
        "C": "28",
        "D": "7"
      },
      "correct_answer": "A"
    },
    {
      "id": 24,
      "difficulty": "medium",
      "question": "What is x? (2x+1)/3 = (x+2)/2 ⚡",
      "options": { "A": "4", "B": "1", "C": "2", "D": "8" },
      "correct_answer": "A"
    },
    {
      "id": 25,
      "difficulty": "medium",
      "question": "Solve: 0.3x + 0.5 = 0.8x - 0.7 🧮",
      "options": {
        "A": "2.4",
        "B": "1.2",
        "C": "0.24",
        "D": "-0.4"
      },
      "correct_answer": "A"
    },
    {
      "id": 26,
      "difficulty": "medium",
      "question": "Find x: 5 - 3(x - 2) = 2 - 4x 🔥",
      "options": { "A": "-9", "B": "9", "C": "3", "D": "-3" },
      "correct_answer": "A"
    },
    {
      "id": 27,
      "difficulty": "medium",
      "question": "Solve: (3x-2)/4 - (2x+3)/3 = -1 ➗",
      "options": { "A": "6", "B": "3", "C": "18", "D": "2" },
      "correct_answer": "A"
    },
    {
      "id": 28,
      "difficulty": "medium",
      "question": "What is x? x - (x-1)/2 = 1 - (x-2)/3 🎲",
      "options": {
        "A": "7/5",
        "B": "1",
        "C": "5/7",
        "D": "2"
      },
      "correct_answer": "A"
    },
    {
      "id": 29,
      "difficulty": "medium",
      "question": "Solve: 2.5(x - 3) = 1.5(x + 2) 📊",
      "options": {
        "A": "21/2",
        "B": "9",
        "C": "12",
        "D": "6"
      },
      "correct_answer": "A"
    },
    {
      "id": 30,
      "difficulty": "medium",
      "question": "Find x: (x+7)/3 - (x+1)/5 = 2 🌟",
      "options": {
        "A": "-1",
        "B": "4",
        "C": "2",
        "D": "8"
      },
      "correct_answer": "A"
    },
    {
      "id": 31,
      "difficulty": "medium",
      "question": "Solve: 3x + 1/2 = 5x - 3/4 ✨",
      "options": {
        "A": "5/8",
        "B": "3/4",
        "C": "1",
        "D": "8/5"
      },
      "correct_answer": "A"
    },
    {
      "id": 32,
      "difficulty": "medium",
      "question": "What is x? 0.4(2x + 3) = 0.6(x - 1) 📈",
      "options": { "A": "-9", "B": "9", "C": "-4.5", "D": "4.5" },
      "correct_answer": "A"
    },
    {
      "id": 33,
      "difficulty": "medium",
      "question": "Solve: (x-1)(x+2) = (x-3)(x+4) 🧠",
      "options": {
        "A": "No solution",
        "B": "1",
        "C": "-5",
        "D": "5"
      },
      "correct_answer": "A"
    },
    {
      "id": 34,
      "difficulty": "medium",
      "question": "Find x: 7x - 4(x - 3) = 5x + 12 🚧",
      "options": { "A": "0", "B": "12", "C": "6", "D": "Infinitely many" },
      "correct_answer": "A"
    },
    {
      "id": 35,
      "difficulty": "medium",
      "question": "Solve: 1/(x+2) = 2/(x+5) (x ≠ -2, -5) 🔄",
      "options": { "A": "1", "B": "-1", "C": "3", "D": "0" },
      "correct_answer": "A"
    },
    {
      "id": 36,
      "difficulty": "medium",
      "question": "What is x? 3/(x-1) = 4/(x+1) (x≠1,-1) 🎯",
      "options": { "A": "7", "B": "-7", "C": "1/7", "D": "-1/7" },
      "correct_answer": "A"
    },
    {
      "id": 37,
      "difficulty": "medium",
      "question": "Solve: (2x-3)/5 + (x+4)/2 = 1 ✅",
      "options": {
        "A": "-4/9",
        "B": "4/9",
        "C": "-9/4",
        "D": "9/4"
      },
      "correct_answer": "A"
    },
    {
      "id": 38,
      "difficulty": "medium",
      "question": "Find x: 5 - {3x - (2x - 1)} = 9 🧩",
      "options": {
        "A": "-5",
        "B": "5",
        "C": "-4",
        "D": "4"
      },
      "correct_answer": "A"
    },
    {
      "id": 39,
      "difficulty": "medium",
      "question": "Solve: (x+1)² - (x-1)² = 8 ⚖️",
      "options": { "A": "2", "B": "4", "C": "1", "D": "8" },
      "correct_answer": "A"
    },
    {
      "id": 40,
      "difficulty": "medium",
      "question": "What is x? 0.25(4x - 8) = 0.5(2x + 6) 🛒",
      "options": {
        "A": "No solution",
        "B": "0",
        "C": "5",
        "D": "Infinite solutions"
      },
      "correct_answer": "A"
    },
    {
      "id": 41,
      "difficulty": "hard",
      "question": "Solve: (x+3)/(x-3) + (x-3)/(x+3) = 2.5 (x≠3,-3) 🔥",
      "options": {
        "A": "9 or -9",
        "B": "5 or -5",
        "C": "3 or -3",
        "D": "No solution"
      },
      "correct_answer": "A"
    },
    {
      "id": 42,
      "difficulty": "hard",
      "question": "Find x: (2x-1)/3 - (6x-2)/5 = 1/3 🧮",
      "options": {
        "A": "-1/2",
        "B": "1/2",
        "C": "-3/2",
        "D": "3/2"
      },
      "correct_answer": "A"
    },
    {
      "id": 43,
      "difficulty": "hard",
      "question": "Solve: |2x - 5| = 7 (absolute value) ⚡",
      "options": {
        "A": "6 or -1",
        "B": "6 only",
        "C": "-1 only",
        "D": "1 or -6"
      },
      "correct_answer": "A"
    },
    {
      "id": 44,
      "difficulty": "hard",
      "question": "What is x? (x-2)/(x+2) - (x+2)/(x-2) = 5/6 (x≠2,-2) 🎲",
      "options": {
        "A": "2/5 or -10",
        "B": "4 or -4",
        "C": "1 or -1",
        "D": "0"
      },
      "correct_answer": "A"
    },
    {
      "id": 45,
      "difficulty": "hard",
      "question": "Solve: 3/[(x-1)(x-2)] + 2/[(x-2)(x-3)] = 1/[(x-1)(x-3)] 🚀",
      "options": {
        "A": "9/4",
        "B": "4",
        "C": "5",
        "D": "6"
      },
      "correct_answer": "A"
    },
    {
      "id": 46,
      "difficulty": "hard",
      "question": "Find x: 0.3(6x - 1) - 0.8(2x - 3) = 0.5(x+1) 📊",
      "options": {
        "A": "16/3",
        "B": "5",
        "C": "4",
        "D": "3"
      },
      "correct_answer": "A"
    },
    {
      "id": 47,
      "difficulty": "hard",
      "question": "Solve: (x+4)/7 - (x+3)/5 = (x+2)/3 - (x+1)/2 🌪️",
      "options": { "A": "-8", "B": "8", "C": "-4", "D": "4" },
      "correct_answer": "A"
    },
    {
      "id": 48,
      "difficulty": "hard",
      "question": "What is x? [5(1-x) + 3(1+x)]/[2(1+2x) + 3(1-2x)] = 1 🧠",
      "options": {
        "A": "1/2",
        "B": "2",
        "C": "0",
        "D": "No solution"
      },
      "correct_answer": "D"
    },
    {
      "id": 49,
      "difficulty": "hard",
      "question": "Solve: (3x-4)/6 - (2x+3)/5 = (x-7)/10 - (2x-1)/15 ✅",
      "options": { "A": "5", "B": "6", "C": "7", "D": "8" },
      "correct_answer": "A"
    },
    {
      "id": 50,
      "difficulty": "hard",
      "question": "Find x: (x-1)/4 - (x-2)/3 = (x-4)/5 - (x-5)/6 🏁",
      "options": { "A": "7", "B": "8", "C": "9", "D": "10" },
      "correct_answer": "A"
    },
    {
      "id": 51,
      "difficulty": "hard",
      "question": "Solve: (2x+3)/(3x+2) = (4x+5)/(6x+7) ✨",
      "options": { "A": "-11/6", "B": "11/6", "C": "0", "D": "1" },
      "correct_answer": "A"
    },
    {
      "id": 52,
      "difficulty": "hard",
      "question": "What is x? (x² - 3x + 2)/(x-1) = 5 (x≠1) 📐",
      "options": {
        "A": "7",
        "B": "5",
        "C": "4",
        "D": "3"
      },
      "correct_answer": "A"
    },
    {
      "id": 53,
      "difficulty": "hard",
      "question": "Solve: |x-3| + |x-5| = 2 (absolute values) 🔷",
      "options": {
        "A": "No solution",
        "B": "x = 4 only",
        "C": "3 ≤ x ≤ 5",
        "D": "x = 3 or x = 5"
      },
      "correct_answer": "C"
    },
    {
      "id": 54,
      "difficulty": "hard",
      "question": "Find x: 1/(x-1) + 2/(x-2) = 3/(x-3) (x≠1,2,3) 🎯",
      "options": {
        "A": "3/2",
        "B": "4",
        "C": "5",
        "D": "6"
      },
      "correct_answer": "A"
    },
    {
      "id": 55,
      "difficulty": "hard",
      "question": "Solve: (x-2)/2 + (x-3)/4 + (x-4)/6 = 10 🚅",
      "options": { "A": "14", "B": "15", "C": "16", "D": "17" },
      "correct_answer": "A"
    },
    {
      "id": 56,
      "difficulty": "hard",
      "question": "What is x? 0.7x - 0.3(2x-1) = 0.5(3x-2) + 0.2 📈",
      "options": { "A": "0.3", "B": "0.4", "C": "0.5", "D": "0.6" },
      "correct_answer": "A"
    },
    {
      "id": 57,
      "difficulty": "hard",
      "question": "Solve: (3x-1)/4 - (2x+1)/5 = (x+3)/10 - (x-1)/2 🌟",
      "options": { "A": "2", "B": "3", "C": "4", "D": "5" },
      "correct_answer": "A"
    },
    {
      "id": 58,
      "difficulty": "hard",
      "question": "Find x: [2(x+1)]/3 + [3(x+2)]/4 = [4(x+3)]/5 + [5(x+4)]/6 🧲",
      "options": { "A": "-8", "B": "-7", "C": "-6", "D": "-5" },
      "correct_answer": "A"
    },
    {
      "id": 59,
      "difficulty": "hard",
      "question": "Solve: (x-1)(x-2) = (x-3)(x-4) + 2 ⚖️",
      "options": { "A": "2", "B": "3", "C": "4", "D": "5" },
      "correct_answer": "A"
    },
    {
      "id": 60,
      "difficulty": "hard",
      "question": "What is x? 5/[x(x+1)] + 4/[x(x-1)] = 3/(x-1) (x≠0,1,-1) 🔑",
      "options": { "A": "2", "B": "3", "C": "4", "D": "5" },
      "correct_answer": "A"
    }
  ]
}