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14 December, 15:50

Maury and Tyra are making phone calls to state representatives' offices to lobby for an issue. Muary can call all 120 state representatives in 10 hours. Tyra can call all 120 state representatives in 8 hours. How long would it take them to call all 120 state representatives together?

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  1. 14 December, 18:12
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    Maury = 120/10 (12 calls/hour)

    Tyra = 120/8 (15 calls/hour)

    Together they are 27 calls per hour.

    120 / 27 = 4.4444444444

    So it'd take them 4.44444444 (recurring) hours to make 120 calls.
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