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Question

P can do a piece of work in 20 days, Q can do the same piece of work in 24 days while R can do it in 30 days. They started working together but after 4 days ‘P’ left the work and the remaining work was completed by Q and R together. Find in how many days will the work be completed?

A 4(2/3) days

B 6(1/2) days

C 6(2/3) days

D 6(2/5) days

E None of these

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