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18 July, 08:52

A company has two large computers. The slower computer can send all the company's email in 60 minutes. The faster computer can complete the same job in 40 minutes. If both computers are working together, how long will it take them to do the job? Do not do any rounding.

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  1. 18 July, 10:26
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    If both computers are working together, it will take 24 minutes to do the job

    Step-by-step explanation:

    It is given that,

    There are two computers. The slower computer can send all the company's email in 60 minutes.

    The faster computer can complete the same job in 40 minutes

    To find the LCM of 40 and 60

    LCM (40, 60) = 120

    To find efficiency of 2 computers

    Let x be the efficiency of faster computer and y be the efficiency of faster computer

    x = 120/40 = 3

    y = 120/60 = 2

    then, x + y = 3 + 2 = 5

    Therefore efficiency of both the computer work together = x + y = 5

    To find the time taken to work both the computer together

    time = 120/5 = 24 minutes
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