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Working together, X and Y can do a piece...

Working together, X and Y can do a piece of work in 12 days, Y and Z can do it in 15 days where as X and Z can do it in 20 days. Who is the most effcient?

A

X

B

Y

C

Z

D

Cannot be determined

Text Solution

Verified by Experts

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