{
  "title": "Indian and International Systems (Numbers up to Crores) - Grade 5 ICSE",
  "total_questions": 60,
  "questions": [
    {
      "id": 1,
      "difficulty": "easy",
      "question": "In Indian system, 10,00,000 is called? 🇮🇳",
      "options": {
        "A": "Ten lakh",
        "B": "One million",
        "C": "One crore",
        "D": "Ten million"
      },
      "correct_answer": "A"
    },
    {
      "id": 2,
      "difficulty": "easy",
      "question": "In International system, 1,000,000 is called? 🌍",
      "options": {
        "A": "Ten lakh",
        "B": "One million",
        "C": "One crore",
        "D": "Ten million"
      },
      "correct_answer": "B"
    },
    {
      "id": 3,
      "difficulty": "easy",
      "question": "Convert to Indian: 5,000,000 🇮🇳",
      "options": {
        "A": "50 lakh",
        "B": "5 lakh",
        "C": "50 crore",
        "D": "5 crore"
      },
      "correct_answer": "A"
    },
    {
      "id": 4,
      "difficulty": "easy",
      "question": "Convert to International: 75,00,000 🌍",
      "options": {
        "A": "7,500,000",
        "B": "75,000,000",
        "C": "750,000",
        "D": "7,500,000,000"
      },
      "correct_answer": "A"
    },
    {
      "id": 5,
      "difficulty": "easy",
      "question": "Indian: 3,45,67,890 has ______ lakhs 🇮🇳",
      "options": { "A": "345", "B": "34", "C": "3456", "D": "3" },
      "correct_answer": "A"
    },
    {
      "id": 6,
      "difficulty": "easy",
      "question": "International: 34,567,890 has ______ millions 🌍",
      "options": { "A": "34", "B": "345", "C": "3", "D": "3456" },
      "correct_answer": "A"
    },
    {
      "id": 7,
      "difficulty": "easy",
      "question": "10 million = ______ lakh 🇮🇳",
      "options": { "A": "10", "B": "100", "C": "1", "D": "1000" },
      "correct_answer": "B"
    },
    {
      "id": 8,
      "difficulty": "easy",
      "question": "1 crore = ______ million 🌍",
      "options": { "A": "1", "B": "10", "C": "100", "D": "1000" },
      "correct_answer": "B"
    },
    {
      "id": 9,
      "difficulty": "easy",
      "question": "Indian: 7,89,45,632 read as? 🇮🇳",
      "options": {
        "A": "Seven crore eighty-nine lakh forty-five thousand six hundred thirty-two",
        "B": "Seventy-eight million nine hundred forty-five thousand six hundred thirty-two",
        "C": "Seven million eighty-nine thousand forty-five hundred six thirty-two",
        "D": "Seven crore eight nine lakh four five thousand six three two"
      },
      "correct_answer": "A"
    },
    {
      "id": 10,
      "difficulty": "easy",
      "question": "International: 56,789,012 read as? 🌍",
      "options": {
        "A": "Five crore sixty-seven lakh eighty-nine thousand twelve",
        "B": "Fifty-six million seven hundred eighty-nine thousand twelve",
        "C": "Five million six hundred seventy-eight thousand nine hundred twelve",
        "D": "Fifty-six lakh seventy-eight thousand nine hundred twelve"
      },
      "correct_answer": "B"
    },
    {
      "id": 11,
      "difficulty": "easy",
      "question": "Convert: 2,500,000 to Indian system 🇮🇳",
      "options": {
        "A": "25,00,000",
        "B": "2,50,000",
        "C": "25,000",
        "D": "2,50,00,000"
      },
      "correct_answer": "A"
    },
    {
      "id": 12,
      "difficulty": "easy",
      "question": "Convert: 45,00,000 to International system 🌍",
      "options": {
        "A": "4,500,000",
        "B": "45,000,000",
        "C": "450,000",
        "D": "4,500,000,000"
      },
      "correct_answer": "A"
    },
    {
      "id": 13,
      "difficulty": "easy",
      "question": "1 lakh = ______ thousand 🔢",
      "options": { "A": "10", "B": "100", "C": "1000", "D": "10000" },
      "correct_answer": "B"
    },
    {
      "id": 14,
      "difficulty": "easy",
      "question": "1 million = ______ thousand 🌍",
      "options": { "A": "10", "B": "100", "C": "1000", "D": "10000" },
      "correct_answer": "C"
    },
    {
      "id": 15,
      "difficulty": "easy",
      "question": "Indian: 99,99,999 comes before ______ 🇮🇳",
      "options": {
        "A": "1,00,00,000",
        "B": "10,00,00,000",
        "C": "99,99,998",
        "D": "1,00,00,001"
      },
      "correct_answer": "A"
    },
    {
      "id": 16,
      "difficulty": "easy",
      "question": "International: 9,999,999 comes before ______ 🌍",
      "options": {
        "A": "10,000,000",
        "B": "1,000,000",
        "C": "9,999,998",
        "D": "10,000,001"
      },
      "correct_answer": "A"
    },
    {
      "id": 17,
      "difficulty": "easy",
      "question": "100 lakh = ______ crore 🇮🇳",
      "options": { "A": "1", "B": "10", "C": "100", "D": "1000" },
      "correct_answer": "A"
    },
    {
      "id": 18,
      "difficulty": "easy",
      "question": "10 million = ______ crore 🇮🇳",
      "options": { "A": "1", "B": "10", "C": "100", "D": "1000" },
      "correct_answer": "A"
    },
    {
      "id": 19,
      "difficulty": "easy",
      "question": "Indian number 5,67,89,012 has ______ periods 🇮🇳",
      "options": {
        "A": "2",
        "B": "3",
        "C": "4",
        "D": "5"
      },
      "correct_answer": "C"
    },
    {
      "id": 20,
      "difficulty": "easy",
      "question": "International number 123,456,789 has ______ commas 🌍",
      "options": { "A": "1", "B": "2", "C": "3", "D": "4" },
      "correct_answer": "B"
    },
    {
      "id": 21,
      "difficulty": "medium",
      "question": "Convert: 12,345,678 to Indian system 🇮🇳",
      "options": {
        "A": "1,23,45,678",
        "B": "12,34,56,78",
        "C": "123,45,678",
        "D": "12,345,678"
      },
      "correct_answer": "A"
    },
    {
      "id": 22,
      "difficulty": "medium",
      "question": "Convert: 9,87,65,432 to International system 🌍",
      "options": {
        "A": "98,765,432",
        "B": "9,876,543",
        "C": "987,654,32",
        "D": "9,876,543,2"
      },
      "correct_answer": "A"
    },
    {
      "id": 23,
      "difficulty": "medium",
      "question": "25 million = ______ lakh 🇮🇳",
      "options": { "A": "25", "B": "250", "C": "2.5", "D": "2500" },
      "correct_answer": "B"
    },
    {
      "id": 24,
      "difficulty": "medium",
      "question": "3.5 crore = ______ million 🌍",
      "options": { "A": "3.5", "B": "35", "C": "350", "D": "0.35" },
      "correct_answer": "B"
    },
    {
      "id": 25,
      "difficulty": "medium",
      "question": "Write in Indian: Three crore forty-five lakh sixty-seven thousand eight hundred ninety 🇮🇳",
      "options": {
        "A": "3,45,67,890",
        "B": "34,56,78,90",
        "C": "345,67,890",
        "D": "3,456,789"
      },
      "correct_answer": "A"
    },
    {
      "id": 26,
      "difficulty": "medium",
      "question": "Write in International: Forty-five million six hundred seventy-eight thousand nine hundred twelve 🌍",
      "options": {
        "A": "45,678,912",
        "B": "4,567,891",
        "C": "456,789,12",
        "D": "45,67,89,12"
      },
      "correct_answer": "A"
    },
    {
      "id": 27,
      "difficulty": "medium",
      "question": "Compare: 5 million ___ 50 lakh ⚖️",
      "options": { "A": ">", "B": "<", "C": "=", "D": "None" },
      "correct_answer": "C"
    },
    {
      "id": 28,
      "difficulty": "medium",
      "question": "Compare: 2 crore ___ 20 million ⚖️",
      "options": { "A": ">", "B": "<", "C": "=", "D": "None" },
      "correct_answer": "C"
    },
    {
      "id": 29,
      "difficulty": "medium",
      "question": "75 lakh = ______ million 🌍",
      "options": { "A": "7.5", "B": "75", "C": "0.75", "D": "750" },
      "correct_answer": "A"
    },
    {
      "id": 30,
      "difficulty": "medium",
      "question": "8.4 million = ______ lakh 🇮🇳",
      "options": { "A": "84", "B": "8.4", "C": "840", "D": "0.84" },
      "correct_answer": "A"
    },
    {
      "id": 31,
      "difficulty": "medium",
      "question": "Indian: 12,34,56,789 has ______ crores 🇮🇳",
      "options": { "A": "12", "B": "123", "C": "1", "D": "1234" },
      "correct_answer": "A"
    },
    {
      "id": 32,
      "difficulty": "medium",
      "question": "International: 123,456,789 has ______ millions 🌍",
      "options": { "A": "123", "B": "12", "C": "1", "D": "1234" },
      "correct_answer": "A"
    },
    {
      "id": 33,
      "difficulty": "medium",
      "question": "Convert: 100,000,000 to Indian system 🇮🇳",
      "options": {
        "A": "10,00,00,000",
        "B": "1,00,00,000",
        "C": "100,00,000",
        "D": "10,00,000"
      },
      "correct_answer": "A"
    },
    {
      "id": 34,
      "difficulty": "medium",
      "question": "Convert: 7,00,00,000 to International system 🌍",
      "options": {
        "A": "70,000,000",
        "B": "7,000,000",
        "C": "700,000,000",
        "D": "7,000,000,000"
      },
      "correct_answer": "A"
    },
    {
      "id": 35,
      "difficulty": "medium",
      "question": "Difference between Indian and International: 1,23,45,678 vs 12,345,678 🔄",
      "options": {
        "A": "Same number",
        "B": "Indian larger",
        "C": "International larger",
        "D": "Different numbers"
      },
      "correct_answer": "A"
    },
    {
      "id": 36,
      "difficulty": "medium",
      "question": "Sum: 25 lakh + 75 lakh = ______ crore 🇮🇳",
      "options": { "A": "1", "B": "10", "C": "100", "D": "0.1" },
      "correct_answer": "A"
    },
    {
      "id": 37,
      "difficulty": "medium",
      "question": "Sum: 3 million + 7 million = ______ million 🌍",
      "options": { "A": "10", "B": "100", "C": "1", "D": "0.1" },
      "correct_answer": "A"
    },
    {
      "id": 38,
      "difficulty": "medium",
      "question": "Convert: 0.5 crore to lakh 🇮🇳",
      "options": { "A": "5", "B": "50", "C": "500", "D": "5000" },
      "correct_answer": "B"
    },
    {
      "id": 39,
      "difficulty": "medium",
      "question": "Convert: 0.8 million to thousand 🌍",
      "options": { "A": "80", "B": "800", "C": "8000", "D": "8" },
      "correct_answer": "B"
    },
    {
      "id": 40,
      "difficulty": "medium",
      "question": "Which is greater: 1.5 crore or 15 million? ⚖️",
      "options": {
        "A": "1.5 crore",
        "B": "15 million",
        "C": "Equal",
        "D": "Can't compare"
      },
      "correct_answer": "C"
    },
    {
      "id": 41,
      "difficulty": "hard",
      "question": "Convert: 123.456 million to Indian system (in crores) 🇮🇳",
      "options": {
        "A": "12.3456 crore",
        "B": "1.23456 crore",
        "C": "123.456 crore",
        "D": "0.123456 crore"
      },
      "correct_answer": "A"
    },
    {
      "id": 42,
      "difficulty": "hard",
      "question": "Convert: 45.67 crore to International system (in millions) 🌍",
      "options": {
        "A": "456.7 million",
        "B": "4.567 million",
        "C": "45.67 million",
        "D": "0.4567 million"
      },
      "correct_answer": "A"
    },
    {
      "id": 43,
      "difficulty": "hard",
      "question": "Add: 2.5 crore + 3.5 million = ______ lakh 🇮🇳",
      "options": { "A": "285", "B": "28.5", "C": "2850", "D": "2.85" },
      "correct_answer": "A"
    },
    {
      "id": 44,
      "difficulty": "hard",
      "question": "Subtract: 10 million - 50 lakh = ______ lakh 🇮🇳",
      "options": { "A": "50", "B": "5", "C": "500", "D": "0.5" },
      "correct_answer": "A"
    },
    {
      "id": 45,
      "difficulty": "hard",
      "question": "Product: 25 lakh × 4 = ______ crore 🇮🇳",
      "options": { "A": "1", "B": "10", "C": "100", "D": "0.1" },
      "correct_answer": "A"
    },
    {
      "id": 46,
      "difficulty": "hard",
      "question": "Product: 2.5 million × 2 = ______ million 🌍",
      "options": { "A": "5", "B": "50", "C": "0.5", "D": "500" },
      "correct_answer": "A"
    },
    {
      "id": 47,
      "difficulty": "hard",
      "question": "Convert: 9,876,543,210 to Indian system 🇮🇳",
      "options": {
        "A": "987,65,43,210",
        "B": "98,76,54,32,10",
        "C": "9,87,65,43,210",
        "D": "987,654,321,0"
      },
      "correct_answer": "C"
    },
    {
      "id": 48,
      "difficulty": "hard",
      "question": "Convert: 12,34,56,78,900 to International system 🌍",
      "options": {
        "A": "1,234,567,890",
        "B": "12,345,678,900",
        "C": "123,456,789,00",
        "D": "1,23,45,67,89,00"
      },
      "correct_answer": "B"
    },
    {
      "id": 49,
      "difficulty": "hard",
      "question": "Compare: 0.75 crore ___ 7.5 million ⚖️",
      "options": { "A": ">", "B": "<", "C": "=", "D": "None" },
      "correct_answer": "C"
    },
    {
      "id": 50,
      "difficulty": "hard",
      "question": "Compare: 125 lakh ___ 1.25 million ⚖️",
      "options": { "A": ">", "B": "<", "C": "=", "D": "None" },
      "correct_answer": "A"
    },
    {
      "id": 51,
      "difficulty": "hard",
      "question": "India's population approx 140 crore. In millions? 🌍",
      "options": {
        "A": "1400 million",
        "B": "140 million",
        "C": "14,000 million",
        "D": "14 million"
      },
      "correct_answer": "A"
    },
    {
      "id": 52,
      "difficulty": "hard",
      "question": "USA's population approx 330 million. In crores? 🇮🇳",
      "options": {
        "A": "33 crore",
        "B": "3.3 crore",
        "C": "330 crore",
        "D": "0.33 crore"
      },
      "correct_answer": "A"
    },
    {
      "id": 53,
      "difficulty": "hard",
      "question": "Sum: 2.25 crore + 3.75 million = ______ lakh 🇮🇳",
      "options": { "A": "262.5", "B": "26.25", "C": "2625", "D": "2.625" },
      "correct_answer": "A"
    },
    {
      "id": 54,
      "difficulty": "hard",
      "question": "Difference: 5 crore - 25 million = ______ lakh 🇮🇳",
      "options": { "A": "250", "B": "25", "C": "2500", "D": "2.5" },
      "correct_answer": "A"
    },
    {
      "id": 55,
      "difficulty": "hard",
      "question": "Convert: 0.025 billion to Indian system (1 billion=100 crore) 🇮🇳",
      "options": {
        "A": "2.5 crore",
        "B": "25 crore",
        "C": "0.25 crore",
        "D": "250 crore"
      },
      "correct_answer": "A"
    },
    {
      "id": 56,
      "difficulty": "hard",
      "question": "Convert: 500 lakh to millions 🌍",
      "options": { "A": "5", "B": "50", "C": "0.5", "D": "500" },
      "correct_answer": "B"
    },
    {
      "id": 57,
      "difficulty": "hard",
      "question": "Which is smallest: 0.5 crore, 5 million, 50 lakh? 🔽",
      "options": {
        "A": "0.5 crore",
        "B": "5 million",
        "C": "50 lakh",
        "D": "All equal"
      },
      "correct_answer": "D"
    },
    {
      "id": 58,
      "difficulty": "hard",
      "question": "Arrange ascending: 1.2 crore, 12 million, 120 lakh 🔼",
      "options": {
        "A": "120 lakh, 1.2 crore, 12 million",
        "B": "12 million, 120 lakh, 1.2 crore",
        "C": "1.2 crore, 12 million, 120 lakh",
        "D": "All equal"
      },
      "correct_answer": "D"
    },
    {
      "id": 59,
      "difficulty": "hard",
      "question": "If 1 USD = 75 INR, then 1 million USD = ______ crore INR 💰",
      "options": { "A": "7.5", "B": "75", "C": "0.75", "D": "750" },
      "correct_answer": "A"
    },
    {
      "id": 60,
      "difficulty": "hard",
      "question": "If 1 crore INR = ______ million USD at 1 USD = 80 INR 💰",
      "options": { "A": "0.125", "B": "1.25", "C": "12.5", "D": "125" },
      "correct_answer": "A"
    }
  ]
}