Question
Two numbers P and Q are in the
ratio 5:8. If X is added to the smaller number and 12 is subtracted from the larger number, the new ratio of P and Q becomes 8:7. Determine the original value of P.Solution
ATQ, Let 'P' = '5a' So, 'Q' = 5a × (8/5) = '8a' ATQ; 
So, 'P' = 5 × 5 = 25
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