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Working together A and B can do a job in...

Working together A and B can do a job in 40 days, B and C in 36 days and all three together in 24 days. In how many days can B alone do the job?

A

60

B

90

C

72

D

100

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The correct Answer is:
A, D
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GAGAN PRATAP -TIME & WORK-TIME & WORK (SHEET-3)
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