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C is 5 times as productive as B. A takes...

C is 5 times as productive as B. A takes 60 days to complete a task. If A, B and C work together they can complete the task in 12 days. In how many days can B complete the task if he worked alone ?

A

18

B

27

C

90

D

72

Text Solution

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The correct Answer is:
C
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