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A alone can complete a task in 3 days. B...

A alone can complete a task in 3 days. B alone can complete the same task in 7 days If A and B work together for 2 days, what fraction of the task will be left?

A

`(2)/(21)`

B

`(1)/(7)`

C

`(4)/(21)`

D

`(1)/(21)`

Text Solution

Verified by Experts

The correct Answer is:
D
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