A did a job in 6 hours , B did the work in 9 hours , how long will it take for them both to complete the work together​

Question

A did a job in 6 hours , B did the work in 9 hours , how long will it take for them both to complete the work together​

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Camila 4 weeks 2021-11-02T07:19:14+00:00 1 Answer 0 views 0

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    2021-11-02T07:20:37+00:00

    Answer:

    3.6 hrs

    Step-by-step explanation:

    Time taken by A = 6 hrs

    therefore time to do 1 part = ⅙hrs

    Time taken by B = 9 hrs

    therefore time taken to do 1 part = ¹/9 hrs

    Time taken to do work together = ⅙ + ¹/9

    = 5/18

    Therefore time to do entire work is reciprocal of 5/18 = 18/5

    = 3⅗ hrs = 3.6 hrs.

    IF THIS HELPED, mark as BRAINLIEST

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