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Question

A and B alone can complete a work in 20 and 80 days, respectively. 50% of the work is completed by C in 5x days, and the remaining work is completed by A and B working together in ‘x’ days. Find the time taken by B and C to complete the whole work while working together.

A 20 days

B 40 days

C 30 days

D 35 days

E 80 days

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