Multiple Choice Questions on Vinay was twice as old as Dev 10 years back How old is Dev Today if Vinay will be 40 years old........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

Vinay was twice as old as Dev 10 years back How old is Dev Today if Vinay will be 40 years old...........

Quantitative Aptitude ( CCS) Problems based on Ages
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     Vinay was twice as old as Dev 10 years back. How old is Dev Today if Vinay will be 40 years old 10 years hence?

    20 years

    Correct Answer

    10 years

    Incorrect Answer

    30 years

    Incorrect Answer

    15 years

    Incorrect Answer
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    Explanation:

     Let the present ages be ‘V’ and ‘D’ respectively.
    10 years back,
    (V - 10) = 2 (D - 10) ----------> (i)
    And V = 30 is given.
    So putting V = 30 in equ (i):-
    D = 20

    By: Deepak Dawra
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