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Ratio and proportion?

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Vipin present age is twice the age of Kishore one year ago.What is the sum of their present ages(in years),if the ratio of the sum of their present ages to the difference of their present ages is 19:5?

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  1. A math problem in chemistry.

    V=2(K-1)

    (V+K)/(V-K) = 19.5

    what is V+K; sub for V and SOLVE for K

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