Question

A can do a piece of work in 12 hrs and B in 24 hrs if they both work together in how may days will they finish work?​

Answer 1

Answer:

A 's one day work = 1/12 th

B's one day work = 1/24 th

together they complete 1/12+1/24 = (2+1)/24

= 3/24 = 1/8 th of the work in one day.

reciprocal of one day work will give us the answer

therefore reciprocal of 1/8 = 8

hence together they will take 8 days to complete the work