Question

A and B together can complete a piece of work in 36 days while A and C together can complete the same work in 39 days. If A, B, and C together can complete 75% of the work in 19.5 days then find the time taken by B and C together to complete 77% of the whole work.

A 23.4days
B 30.0days
C 32.7days
D 27days
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