A can do a piece of work in 20 days and B in 40 days. If they work together for – OfficerPath

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MCQ Practice

A can do a piece of work in 20 days and B in 40 days. If they work together for 5 days, then the fraction of the work that is left is?

Subject: MathematicsTopic: Time And Work

A

frac58

B

frac815

C

frac715

D

frac110

Correct Answer: A

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