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A is four times as efficient as B.B star...

A is four times as efficient as B.B started the work and after 6 days, A joined him. If the whole work was completed in 12 days, in how many days can A alone finish the whole piece of work?

A

10

B

9

C

8

D

12

Text Solution

Verified by Experts

The correct Answer is:
B
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