Answer : 2 3 Explanation : Answer: B) 3 Explanation: According to the given data,P Q = 41 ......(1)R - 1 = P 2R = P 3andP 4 = Q - 1=

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Sum of present ages of P and Q is 41. Age of P 2 year hence is equal to age of R, 1 year ago. Age of P, 4 year hence is equal to age of Q 1 year ago and ratio of present age of P and S is 3 : 4. Find the difference of age of R and S.