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26 October, 23:29

Devaughn is 5 years younger than Sydney. The sum of their ages is45. What is Sydney's age?

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Answers (2)
  1. 26 October, 23:32
    0
    Total age=45

    devaughn is 5 years younger

    45-5=40

    so,

    40 divided by 2 equals = 20

    so each of them is 20

    without remaining 5

    so devaughn is 20

    so sydney is 45-20=25

    so, sydney is 25 years old
  2. 26 October, 23:46
    0
    Let the age of devaughn be x and Sydney be y.

    Then, x+y=45

    x+5=y

    y=x+5

    here,

    put y=x+y in x+y=45

    then,

    x+y=45

    x+x+5=45

    2x=40

    x=20

    now,

    y=x+5

    y=20+5

    y=25
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