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20 August, 09:23

A copy machine makes 147 copies in 5 minutes an 15 seconds how many copies does it make per minute

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  1. 20 August, 12:06
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    28

    Step-by-step explanation:

    number of copies done in 5 minute 15 seconds = 147

    60 seconds is equal to 1 minute

    1 second is equal to 1/60 minutes

    therefore 15 seconds is equal to 1/60 * 15 minutes = 1/4 minutes

    thus,

    number of copies done in 5 1/4 minute = 147

    number of copies done in 1 minute = 147 / 5 1/4 (as 147/21 = 7)

    = 147 / (21/4) = 7*4 = 28

    Thus, A copy machine makes 28 copies in 1 minute.
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