The ratio of laptops to tablets in the stock room of a store is 13 : 17. If there are a total of 90 laptops and tablets in the stock room, h

Question

The ratio of laptops to tablets in the stock room of a store is 13 : 17. If there are a total of 90 laptops and tablets in the stock room, how many laptops are in the stock room?

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Diễm Kiều 3 years 2021-08-05T06:51:59+00:00 1 Answers 96 views 0

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  1. thuthao
    0
    2021-08-05T06:53:17+00:00
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    Answer:

    39  laptops

    Step-by-step explanation:

    Step one:

    Given data

    The ratio of laptops to tablets in the stock room of a store is 13 : 17

    The sum of the ratio is= 13+17= 30

    there are a total of 90 laptops

    Required

    The number of laptops

    Step two:

    Applying the part to all method

    let the number of laptops be x

    so

    13/30= x/90

    cross multiply we have

    30x= 13*90

    30x= 1170

    x= 1170/30

    x=39  laptops

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