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.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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