medium Set 91 Form Exercise

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    "problems": [
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            "id": 1,
            "type": "clock-math",
            "subType": "add-time",
            "question": "15 minutes after 1:20 = ?",
            "answer": "1:35",
            "correctAnswer": "1:35",
            "difficulty": "normal"
        },
        {
            "id": 2,
            "type": "clock-math",
            "subType": "add-time",
            "question": "70 minutes after 10:55 = ?",
            "answer": "12:05",
            "correctAnswer": "12:05",
            "difficulty": "normal"
        },
        {
            "id": 3,
            "type": "clock-math",
            "subType": "read-time",
            "question": "What time is shown on the clock? [hour hand near 7, minute hand at 5 minutes]",
            "answer": "7:05",
            "correctAnswer": "7:05",
            "difficulty": "normal"
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        {
            "id": 4,
            "type": "clock-math",
            "subType": "read-time",
            "question": "What time is shown on the clock? [hour hand near 11, minute hand at 15 minutes]",
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            "correctAnswer": "11:15",
            "difficulty": "normal"
        },
        {
            "id": 5,
            "type": "clock-math",
            "subType": "elapsed-time",
            "question": "How many minutes from 3:20 to 3:30?",
            "answer": 10,
            "correctAnswer": "10",
            "difficulty": "normal"
        },
        {
            "id": 6,
            "type": "clock-math",
            "subType": "add-time",
            "question": "45 minutes after 2:40 = ?",
            "answer": "3:25",
            "correctAnswer": "3:25",
            "difficulty": "normal"
        },
        {
            "id": 7,
            "type": "clock-math",
            "subType": "add-time",
            "question": "55 minutes after 7:50 = ?",
            "answer": "8:45",
            "correctAnswer": "8:45",
            "difficulty": "normal"
        },
        {
            "id": 8,
            "type": "clock-math",
            "subType": "subtract-time",
            "question": "60 minutes before 6:25 = ?",
            "answer": "5:25",
            "correctAnswer": "5:25",
            "difficulty": "normal"
        },
        {
            "id": 9,
            "type": "clock-math",
            "subType": "elapsed-time",
            "question": "How many minutes from 9:00 to 10:35?",
            "answer": 95,
            "correctAnswer": "95",
            "difficulty": "normal"
        },
        {
            "id": 10,
            "type": "clock-math",
            "subType": "elapsed-time",
            "question": "How many minutes from 11:40 to 12:15?",
            "answer": 35,
            "correctAnswer": "35",
            "difficulty": "normal"
        },
        {
            "id": 11,
            "type": "clock-math",
            "subType": "elapsed-time",
            "question": "How many minutes from 2:25 to 3:50?",
            "answer": 85,
            "correctAnswer": "85",
            "difficulty": "normal"
        },
        {
            "id": 12,
            "type": "clock-math",
            "subType": "subtract-time",
            "question": "35 minutes before 10:10 = ?",
            "answer": "9:35",
            "correctAnswer": "9:35",
            "difficulty": "normal"
        },
        {
            "id": 13,
            "type": "clock-math",
            "subType": "read-time",
            "question": "What time is shown on the clock? [hour hand near 10, minute hand at 5 minutes]",
            "answer": "10:05",
            "correctAnswer": "10:05",
            "difficulty": "normal"
        },
        {
            "id": 14,
            "type": "clock-math",
            "subType": "read-time",
            "question": "What time is shown on the clock? [hour hand near 11, minute hand at 35 minutes]",
            "answer": "11:35",
            "correctAnswer": "11:35",
            "difficulty": "normal"
        },
        {
            "id": 15,
            "type": "clock-math",
            "subType": "subtract-time",
            "question": "5 minutes before 3:00 = ?",
            "answer": "2:55",
            "correctAnswer": "2:55",
            "difficulty": "normal"
        },
        {
            "id": 16,
            "type": "clock-math",
            "subType": "subtract-time",
            "question": "55 minutes before 6:15 = ?",
            "answer": "5:20",
            "correctAnswer": "5:20",
            "difficulty": "normal"
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        {
            "id": 17,
            "type": "clock-math",
            "subType": "elapsed-time",
            "question": "How many minutes from 10:00 to 10:25?",
            "answer": 25,
            "correctAnswer": "25",
            "difficulty": "normal"
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            "id": 18,
            "type": "clock-math",
            "subType": "subtract-time",
            "question": "10 minutes before 11:00 = ?",
            "answer": "10:50",
            "correctAnswer": "10:50",
            "difficulty": "normal"
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            "id": 19,
            "type": "clock-math",
            "subType": "elapsed-time",
            "question": "How many minutes from 4:05 to 5:10?",
            "answer": 65,
            "correctAnswer": "65",
            "difficulty": "normal"
        },
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            "id": 20,
            "type": "clock-math",
            "subType": "elapsed-time",
            "question": "How many minutes from 6:35 to 7:00?",
            "answer": 25,
            "correctAnswer": "25",
            "difficulty": "normal"
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