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16 December, 09:14

A red bus leaves a themes every 24 minutes and a blue bus leaves the park every 20 minutes. they both leave the park at noon. where is the next time that both buses will leave the park?

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  1. 16 December, 09:29
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    The number of minutes after noon when they leave together will be the Lowest common Multiple of 20 and 24.

    20 = 2*2*5

    24 = 2*2*2*3

    LCM = 2 * 2*2*3*5 = 120 minutes = 2 hours

    So they will next leave st the same time at noon + 2 = 2.00 pm.
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