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X does 25% of work in 20 days . Y joins ...

X does 25% of work in 20 days . Y joins X and they together finish the remaining work in 15 days. Y alone can do the whole work in ____days.
A. 30 days
B. ` 25 ^(1//2) ` days
C. ` 26 ^(2//3) ` days
D. ` 26 ^(1//3) ` days

A

A

B

D

C

B

D

C

Text Solution

Verified by Experts

The correct Answer is:
D
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