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16 April, 08:56

Mary runs 4 laps in 8 mins. Nicole runs 12 laps in 18 mins. Who runs faster

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  1. 16 April, 11:25
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    Find to LCM of 8 and 18 to compare times

    Mary: 4*9laps/8*9min

    36 laps / 72 mins

    Nicole: 12*4laps/18*4 mins

    48 laps / 72 mins

    Nicole runs more laps in the same amount of time as Mary

    Therefore, Nicole runs faster
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