Time 1 Minute Expert — Set 23

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        "subject": "clock-math",
        "difficulty": "expert",
        "config": {
            "difficulty": "expert",
            "clockMode": "1-minute",
            "maxNumber": 10
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        "problems": [
            {
                "id": 1,
                "type": "clock-math",
                "subType": "subtract-time",
                "question": "49 minutes before 2:21 = ?",
                "answer": "1:32",
                "correctAnswer": "1:32",
                "difficulty": "expert"
            },
            {
                "id": 2,
                "type": "clock-math",
                "subType": "subtract-time",
                "question": "33 minutes before 4:00 = ?",
                "answer": "3:27",
                "correctAnswer": "3:27",
                "difficulty": "expert"
            },
            {
                "id": 3,
                "type": "clock-math",
                "subType": "add-time",
                "question": "14 minutes after 7:27 = ?",
                "answer": "7:41",
                "correctAnswer": "7:41",
                "difficulty": "expert"
            },
            {
                "id": 4,
                "type": "clock-math",
                "subType": "read-time",
                "question": "What time is shown on the clock? [hour hand near 3, minute hand at 35 minutes]",
                "answer": "3:35",
                "correctAnswer": "3:35",
                "difficulty": "expert"
            },
            {
                "id": 5,
                "type": "clock-math",
                "subType": "add-time",
                "question": "74 minutes after 8:36 = ?",
                "answer": "9:50",
                "correctAnswer": "9:50",
                "difficulty": "expert"
            },
            {
                "id": 6,
                "type": "clock-math",
                "subType": "add-time",
                "question": "52 minutes after 1:05 = ?",
                "answer": "1:57",
                "correctAnswer": "1:57",
                "difficulty": "expert"
            },
            {
                "id": 7,
                "type": "clock-math",
                "subType": "elapsed-time",
                "question": "How many minutes from 6:43 to 6:51?",
                "answer": 8,
                "correctAnswer": "8",
                "difficulty": "expert"
            },
            {
                "id": 8,
                "type": "clock-math",
                "subType": "read-time",
                "question": "What time is shown on the clock? [hour hand near 10, minute hand at 45 minutes]",
                "answer": "10:45",
                "correctAnswer": "10:45",
                "difficulty": "expert"
            },
            {
                "id": 9,
                "type": "clock-math",
                "subType": "add-time",
                "question": "42 minutes after 8:15 = ?",
                "answer": "8:57",
                "correctAnswer": "8:57",
                "difficulty": "expert"
            },
            {
                "id": 10,
                "type": "clock-math",
                "subType": "subtract-time",
                "question": "56 minutes before 10:22 = ?",
                "answer": "9:26",
                "correctAnswer": "9:26",
                "difficulty": "expert"
            },
            {
                "id": 11,
                "type": "clock-math",
                "subType": "read-time",
                "question": "What time is shown on the clock? [hour hand near 6, minute hand at 58 minutes]",
                "answer": "6:58",
                "correctAnswer": "6:58",
                "difficulty": "expert"
            },
            {
                "id": 12,
                "type": "clock-math",
                "subType": "elapsed-time",
                "question": "How many minutes from 2:20 to 2:36?",
                "answer": 16,
                "correctAnswer": "16",
                "difficulty": "expert"
            },
            {
                "id": 13,
                "type": "clock-math",
                "subType": "subtract-time",
                "question": "21 minutes before 2:52 = ?",
                "answer": "2:31",
                "correctAnswer": "2:31",
                "difficulty": "expert"
            },
            {
                "id": 14,
                "type": "clock-math",
                "subType": "elapsed-time",
                "question": "How many minutes from 1:48 to 3:45?",
                "answer": 117,
                "correctAnswer": "117",
                "difficulty": "expert"
            },
            {
                "id": 15,
                "type": "clock-math",
                "subType": "read-time",
                "question": "What time is shown on the clock? [hour hand near 9, minute hand at 16 minutes]",
                "answer": "9:16",
                "correctAnswer": "9:16",
                "difficulty": "expert"
            },
            {
                "id": 16,
                "type": "clock-math",
                "subType": "subtract-time",
                "question": "33 minutes before 3:34 = ?",
                "answer": "3:01",
                "correctAnswer": "3:01",
                "difficulty": "expert"
            },
            {
                "id": 17,
                "type": "clock-math",
                "subType": "elapsed-time",
                "question": "How many minutes from 7:48 to 9:12?",
                "answer": 84,
                "correctAnswer": "84",
                "difficulty": "expert"
            },
            {
                "id": 18,
                "type": "clock-math",
                "subType": "elapsed-time",
                "question": "How many minutes from 1:19 to 2:58?",
                "answer": 99,
                "correctAnswer": "99",
                "difficulty": "expert"
            },
            {
                "id": 19,
                "type": "clock-math",
                "subType": "add-time",
                "question": "16 minutes after 2:22 = ?",
                "answer": "2:38",
                "correctAnswer": "2:38",
                "difficulty": "expert"
            },
            {
                "id": 20,
                "type": "clock-math",
                "subType": "add-time",
                "question": "18 minutes after 11:52 = ?",
                "answer": "12:10",
                "correctAnswer": "12:10",
                "difficulty": "expert"
            }
        ],
        "layout": {
            "columns": 2,
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    "_archetype": "form-exercise",
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