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A can do a work alone in 20 days. A and ...

A can do a work alone in 20 days. A and B together can do the same work in 15 days. B and C together can do the same work in 752 days. What is the ratio of efficiency of A, B and C in terms of working?

A

`5 : 3 : 1`

B

`5 : 4 : 3`

C

`10 : 4 : 1`

D

`15 : 5 : 3`

Text Solution

Verified by Experts

The correct Answer is:
D
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