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A and B together can do a work in 12 day...

A and B together can do a work in 12 days. B and C together do It in 15 days. If A's efficiency is twice that of C, then the days required for B alone to finish the work is

A

60 days

B

30 days

C

20 days

D

15 days

Text Solution

Verified by Experts

The correct Answer is:
C
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KIRAN PUBLICATION-TIME AND WORK-TYPE-IV
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