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31 July, 04:13

3/5 of a number is 30. What's the number?

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Answers (2)
  1. 31 July, 04:18
    0
    If 3/5 of a number is 30 then divide 30 by the numerator (3 in this case) and then multiply by the denominator (5 in this case) and you will get 50
  2. 31 July, 04:29
    0
    33 1/3

    Step-by-step explanation:

    Let the number be a.

    Of means multiplication.

    So,

    3/5 x a = 20

    3a/5 = 20

    Cross multiply

    3a = 20 x 5

    3a = 100

    Divide both sides by 3

    3a/3 = 100/3

    a = 33 1/3

    The number is 33 1/3.

    If you multiply 3/5 by 33 1/3, the answer will be equal to 20.
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