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14 January, 15:17

Mei does 6 problems in 18 minutes. How many can she complete in 12 minutes

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  1. 14 January, 15:32
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    Do cross multiplication

    6 = x

    18 12

    Now cross multiply

    (6) (12) = (18) (x)

    72 = 18x

    Divide both sides by 18

    72 = 18x

    18 18

    4 = x

    So tMei can complete 4 problems in 12 minutes.
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