Time Telling Time 1 Minute — Set 14

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    "contentData": {
        "operation": "clock-math",
        "subject": "clock-math",
        "difficulty": "medium",
        "config": {
            "clockMode": "hour",
            "maxNumber": 10
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        "problems": [
            {
                "id": 1,
                "type": "clock-math",
                "subType": "add-time",
                "question": "85 minutes after 11:05 = ?",
                "answer": "12:30",
                "correctAnswer": "12:30",
                "difficulty": "normal"
            },
            {
                "id": 2,
                "type": "clock-math",
                "subType": "elapsed-time",
                "question": "How many minutes from 2:50 to 4:20?",
                "answer": 90,
                "correctAnswer": "90",
                "difficulty": "normal"
            },
            {
                "id": 3,
                "type": "clock-math",
                "subType": "add-time",
                "question": "30 minutes after 11:10 = ?",
                "answer": "11:40",
                "correctAnswer": "11:40",
                "difficulty": "normal"
            },
            {
                "id": 4,
                "type": "clock-math",
                "subType": "elapsed-time",
                "question": "How many minutes from 3:40 to 4:15?",
                "answer": 35,
                "correctAnswer": "35",
                "difficulty": "normal"
            },
            {
                "id": 5,
                "type": "clock-math",
                "subType": "add-time",
                "question": "5 minutes after 6:10 = ?",
                "answer": "6:15",
                "correctAnswer": "6:15",
                "difficulty": "normal"
            },
            {
                "id": 6,
                "type": "clock-math",
                "subType": "add-time",
                "question": "70 minutes after 10:30 = ?",
                "answer": "11:40",
                "correctAnswer": "11:40",
                "difficulty": "normal"
            },
            {
                "id": 7,
                "type": "clock-math",
                "subType": "add-time",
                "question": "10 minutes after 2:35 = ?",
                "answer": "2:45",
                "correctAnswer": "2:45",
                "difficulty": "normal"
            },
            {
                "id": 8,
                "type": "clock-math",
                "subType": "subtract-time",
                "question": "35 minutes before 10:50 = ?",
                "answer": "10:15",
                "correctAnswer": "10:15",
                "difficulty": "normal"
            },
            {
                "id": 9,
                "type": "clock-math",
                "subType": "elapsed-time",
                "question": "How many minutes from 1:45 to 3:35?",
                "answer": 110,
                "correctAnswer": "110",
                "difficulty": "normal"
            },
            {
                "id": 10,
                "type": "clock-math",
                "subType": "add-time",
                "question": "80 minutes after 1:50 = ?",
                "answer": "3:10",
                "correctAnswer": "3:10",
                "difficulty": "normal"
            },
            {
                "id": 11,
                "type": "clock-math",
                "subType": "read-time",
                "question": "What time is shown on the clock? [3 o'clock]",
                "answer": "3:00",
                "correctAnswer": "3:00",
                "difficulty": "normal"
            },
            {
                "id": 12,
                "type": "clock-math",
                "subType": "add-time",
                "question": "30 minutes after 4:55 = ?",
                "answer": "5:25",
                "correctAnswer": "5:25",
                "difficulty": "normal"
            },
            {
                "id": 13,
                "type": "clock-math",
                "subType": "read-time",
                "question": "What time is shown on the clock? [hour hand near 1, minute hand at 10 minutes]",
                "answer": "1:10",
                "correctAnswer": "1:10",
                "difficulty": "normal"
            },
            {
                "id": 14,
                "type": "clock-math",
                "subType": "subtract-time",
                "question": "40 minutes before 7:30 = ?",
                "answer": "6:50",
                "correctAnswer": "6:50",
                "difficulty": "normal"
            },
            {
                "id": 15,
                "type": "clock-math",
                "subType": "read-time",
                "question": "What time is shown on the clock? [hour hand near 12, minute hand at 55 minutes]",
                "answer": "12:55",
                "correctAnswer": "12:55",
                "difficulty": "normal"
            },
            {
                "id": 16,
                "type": "clock-math",
                "subType": "read-time",
                "question": "What time is shown on the clock? [hour hand near 12, minute hand at 5 minutes]",
                "answer": "12:05",
                "correctAnswer": "12:05",
                "difficulty": "normal"
            },
            {
                "id": 17,
                "type": "clock-math",
                "subType": "subtract-time",
                "question": "15 minutes before 9:55 = ?",
                "answer": "9:40",
                "correctAnswer": "9:40",
                "difficulty": "normal"
            },
            {
                "id": 18,
                "type": "clock-math",
                "subType": "add-time",
                "question": "45 minutes after 11:30 = ?",
                "answer": "12:15",
                "correctAnswer": "12:15",
                "difficulty": "normal"
            },
            {
                "id": 19,
                "type": "clock-math",
                "subType": "add-time",
                "question": "5 minutes after 4:40 = ?",
                "answer": "4:45",
                "correctAnswer": "4:45",
                "difficulty": "normal"
            },
            {
                "id": 20,
                "type": "clock-math",
                "subType": "elapsed-time",
                "question": "How many minutes from 8:40 to 9:05?",
                "answer": 25,
                "correctAnswer": "25",
                "difficulty": "normal"
            }
        ],
        "layout": {
            "columns": 2,
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    "_archetype": "form-exercise",
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