Question

    20 men take 15 days to finish some work. 24 women can

    finish the same work in 20 days. If the ratio of efficiencies of each man and woman is p:q, respectively, then find the value of (p + q) given that 'p' and 'q' are both co-primes.
    A 15 Correct Answer Incorrect Answer
    B 17 Correct Answer Incorrect Answer
    C 13 Correct Answer Incorrect Answer
    D 11 Correct Answer Incorrect Answer

    Solution

    Let efficiency of each man be 'm' units/day and that of each woman be 'w' units/day

    ATQ:

    20 X 15m = 24 X 20w

    Or, (m/w) = (8/5)

    So, p = 8 and q = 5

    So, required value = 8 + 5 = 13

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