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If the sum of two numbers is 280, and their ratio is 7:3, then the smaller number is?

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  1. 27 May, 10:03
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    7+3=10

    10 units=280

    divide by 10

    1unit=28

    smaller is 3 units

    1unit=28

    times 3 both sides

    3unit=84

    smaller is 84
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