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If A can do a work in 12 days.and B can do the work in 15days.if A and B together can do the work then how many days they can finish the work?

Answers (1)

Work done by A in one day = 1/12 part of work

Work done by B in one day = 1/15 part of work

Work done by (A+B ) in one day = 1/12 + 1/15 = 9/60 = 3/20 part of work

Hence they can finish the work in 20/3 = 6.666 days.

Posted by

Ravindra Pindel

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