A can do a work in 15 days and B in 20 days. If they work on it together for 4 d – OfficerPath

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MCQ Practice

A can do a work in 15 days and B in 20 days. If they work on it together for 4 days, then the fraction of the work that is left is:

Subject: MathematicsTopic: Time And Work

A

frac14

B

frac110

C

frac715

D

frac815

Correct Answer: D

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