Question

A and B together can do a piece of work in 8 days and B alone can complete it in 12 days how long will A take to do it alone
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Answer 1

As Given,

A and B together did work in 8days

B did work in 12 days

So,A does the work in

A+B=8days

B=12days

LCM of 8 and 12 is 24

Now,device 24/8=3

Then 24/12=2

Subtract 2 from 3 and divide it by 24

So,24/1

Therefore,A takes 24 days to complete the work