Clock Math Quarter Hour Hard — Set 41

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            "difficulty": "hard",
            "clockMode": "quarter-hour",
            "maxNumber": 10
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        "problems": [
            {
                "id": 1,
                "type": "clock-math",
                "subType": "add-time",
                "question": "57 minutes after 6:58 = ?",
                "answer": "7:55",
                "correctAnswer": "7:55",
                "difficulty": "hard"
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            {
                "id": 2,
                "type": "clock-math",
                "subType": "elapsed-time",
                "question": "How many minutes from 7:52 to 8:00?",
                "answer": 8,
                "correctAnswer": "8",
                "difficulty": "hard"
            },
            {
                "id": 3,
                "type": "clock-math",
                "subType": "subtract-time",
                "question": "31 minutes before 11:48 = ?",
                "answer": "11:17",
                "correctAnswer": "11:17",
                "difficulty": "hard"
            },
            {
                "id": 4,
                "type": "clock-math",
                "subType": "elapsed-time",
                "question": "How many minutes from 7:21 to 7:27?",
                "answer": 6,
                "correctAnswer": "6",
                "difficulty": "hard"
            },
            {
                "id": 5,
                "type": "clock-math",
                "subType": "elapsed-time",
                "question": "How many minutes from 10:53 to 10:55?",
                "answer": 2,
                "correctAnswer": "2",
                "difficulty": "hard"
            },
            {
                "id": 6,
                "type": "clock-math",
                "subType": "subtract-time",
                "question": "50 minutes before 2:31 = ?",
                "answer": "1:41",
                "correctAnswer": "1:41",
                "difficulty": "hard"
            },
            {
                "id": 7,
                "type": "clock-math",
                "subType": "elapsed-time",
                "question": "How many minutes from 1:58 to 2:32?",
                "answer": 34,
                "correctAnswer": "34",
                "difficulty": "hard"
            },
            {
                "id": 8,
                "type": "clock-math",
                "subType": "add-time",
                "question": "6 minutes after 9:19 = ?",
                "answer": "9:25",
                "correctAnswer": "9:25",
                "difficulty": "hard"
            },
            {
                "id": 9,
                "type": "clock-math",
                "subType": "subtract-time",
                "question": "60 minutes before 2:35 = ?",
                "answer": "1:35",
                "correctAnswer": "1:35",
                "difficulty": "hard"
            },
            {
                "id": 10,
                "type": "clock-math",
                "subType": "subtract-time",
                "question": "13 minutes before 11:50 = ?",
                "answer": "11:37",
                "correctAnswer": "11:37",
                "difficulty": "hard"
            },
            {
                "id": 11,
                "type": "clock-math",
                "subType": "subtract-time",
                "question": "45 minutes before 11:38 = ?",
                "answer": "10:53",
                "correctAnswer": "10:53",
                "difficulty": "hard"
            },
            {
                "id": 12,
                "type": "clock-math",
                "subType": "read-time",
                "question": "What time is shown on the clock? [hour hand near 7, minute hand at 50 minutes]",
                "answer": "7:50",
                "correctAnswer": "7:50",
                "difficulty": "hard"
            },
            {
                "id": 13,
                "type": "clock-math",
                "subType": "add-time",
                "question": "28 minutes after 10:55 = ?",
                "answer": "11:23",
                "correctAnswer": "11:23",
                "difficulty": "hard"
            },
            {
                "id": 14,
                "type": "clock-math",
                "subType": "add-time",
                "question": "45 minutes after 1:47 = ?",
                "answer": "2:32",
                "correctAnswer": "2:32",
                "difficulty": "hard"
            },
            {
                "id": 15,
                "type": "clock-math",
                "subType": "add-time",
                "question": "86 minutes after 5:49 = ?",
                "answer": "7:15",
                "correctAnswer": "7:15",
                "difficulty": "hard"
            },
            {
                "id": 16,
                "type": "clock-math",
                "subType": "elapsed-time",
                "question": "How many minutes from 6:39 to 8:22?",
                "answer": 103,
                "correctAnswer": "103",
                "difficulty": "hard"
            },
            {
                "id": 17,
                "type": "clock-math",
                "subType": "elapsed-time",
                "question": "How many minutes from 2:05 to 2:22?",
                "answer": 17,
                "correctAnswer": "17",
                "difficulty": "hard"
            },
            {
                "id": 18,
                "type": "clock-math",
                "subType": "subtract-time",
                "question": "26 minutes before 8:25 = ?",
                "answer": "7:59",
                "correctAnswer": "7:59",
                "difficulty": "hard"
            },
            {
                "id": 19,
                "type": "clock-math",
                "subType": "elapsed-time",
                "question": "How many minutes from 8:52 to 9:19?",
                "answer": 27,
                "correctAnswer": "27",
                "difficulty": "hard"
            },
            {
                "id": 20,
                "type": "clock-math",
                "subType": "read-time",
                "question": "What time is shown on the clock? [hour hand near 12, minute hand at 57 minutes]",
                "answer": "12:57",
                "correctAnswer": "12:57",
                "difficulty": "hard"
            }
        ],
        "layout": {
            "columns": 2,
            "problemsPerPage": 20
        }
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    "_archetype": "form-exercise",
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