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22 October, 15:00

Problem Martin is taking a test at school. His teacher gave him 111 hour and 151515 minutes to complete the test. He has been taking the test for 545454 minutes. How many minutes does Martin have left to finish the test?

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  1. 22 October, 18:11
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    5715 minutes

    Step-by-step explanation:

    1hr = 60min

    to convert from hrs to mins multiply by 60

    111hr = 6660min

    to convert to hrs from mins divide by 60

    2525.25hr = 151515min

    9090 hr = 545454min

    6660 + 2525.25 = 9185.25hrs

    9185.25 - 9090 = 95.25hrs

    95.25hrs = 5715 minutes
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