If p p p men can complete a work in q q q days and q q q women can complete the same work in p p p days, and if $20$ men and $16$ women work together,...

Question

If pp men can complete a work in qq days and qq women can complete the same work in pp days, and if $20$ men and $16$ women work together, they can finish the work in 53113531\frac{1}{3} days. What is the ratio of the efficiency of a man to that of a woman?

Options

A.

1:11:1

B.

p:qp:q

C.

q:pq:p

D.

2:32:3

work and timeefficiencyratiomen and women work

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