Question

A can do a piece of work in 10 days,b in 15 days.They work for 5 days.The rest of the work

Answer 1

17 .5 hours is the correct answer

Answer 2

Answer

A's one day work= 1/10

B's one day work= 1/15

(A+B)'s one day work=1/5

Remaining work (total work=1)=1-1/5

5-1/5=4/5

Hope it helps...

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