A and B can do a piece of work in 10 day...

A and B can do a piece of work in 10 days, B and C in 15 days and C and A in 20 days. Calone can do the work in :

A

60 days

B

120 days

C

80 days

D

30 days

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Verified by Experts

The correct Answer is:

B

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