Question

can do a work in days and B in days. If they together work on it for days, what fraction of the work will be left ?ย 

A

B

C

D

Medium

Solution

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Correct option is
D

Amount of work A can do in 1 day

Amount of work B can do in 1 day

Amount of work done by A and B in 1 day

Amount of work A and B can together do in 4 days
Fraction of work left

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