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Efficiency of Asha is 25% more than Ush...

Efficiency of Asha is `25%` more than Usha and Usha takes 25 days to complete a piece of work. Asha started a work alone and then usha joined her 5 days before actual completion of the work. For how many days did Asha work alone?

A

9

B

11

C

10

D

15

Text Solution

Verified by Experts

The correct Answer is:
B
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