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23 June, 19:59

It took jack 4 and half minutes to do 100 multiplication facts how long it takes him to do 150

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  1. 23 June, 20:02
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    6.75 min

    Step-by-step explanation:

    100 facts/4.5 min = 150 facts/x min

    x = (150*4.5) / 100=6.75
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