Question

In how many
Three friends Paul, Harish and Thomas take up the work of fence
garden in their back yard and decide to help each other in the
finish. Paul and Harish can finish the fencing work in 12 days, while
and Thomas can finish the work in 15 days and Thomas and Paul
finish in 20 days. If they decide to do the work separately, in how m
days will Harish finish the work?
(A) 20 days (8) 28 days
(C) 25 days (0) 40 days
(E) None of these
Answer: (A. but how​

Answer 1

Answer:

a) bcoz he required less time when he worked with a partner ,and separately. he will required 20 days