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Deepak Bora
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Sumit is 3 times as old as his son. Five years later, he shall be two and a half times as old as his son. How old is Sumit at present ?

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CBSE 10th Class past year question paper

Year 2019

SET 1, Code Number- 30/2/1

Question number – 11 (b)

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  1. Let Son’s present age be x years

    Then Sumit’s present age = 3x years

    ∴ 5 Years later, we have,

    3x + 5 = 5/2 (x + 5)

    6x + 10 = 5x + 25

    x = 15

    ∴ Sumit’s present age = 45 years

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