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A can do a piece of work in 25 days and ...

A can do a piece of work in 25 days and B can finish it in 20 days. They work together for 5 days and then A goes away. In how many days will B finish the remaining work ?

A

17 1/2 days

B

11 days

C

8 4/7 days

D

10 days

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The correct Answer is:
B
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