Question

A can complete a piece of work in 18 days
and B can complete the same work in half
of the time taken by A. Then, working
together, what part of the same work they
can complete in a day?
(A) =
(E) None of these​

Answer 1

Answer:

A one day work = 1/18

B one day work= 1/9

their together one day work =1/18+1/9=3/18=1/6