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A and B can do a piece of work in 12 day...

A and B can do a piece of work in 12 days, B and C in 15 days, C and A in 20 days. In what time can A do it separately?

A

10 days

B

20 days

C

30 days

D

40 days

Text Solution

Verified by Experts

The correct Answer is:
C
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