1.

A is thrice as good as workman as B and therefore is able to finish a job in 60 days less than B. Working together, they can do it in

Answer»

45/2 days



Ratio of times taken by A and B = 1 : 3
.
The TIME difference is (3 - 1) 2 days while B TAKE 3 days and A takes 1 day.

If difference of time is 2 days, B takes 3 days.

If difference of time is 60 days, B takes 3/2 x 60 = 90 days
.
So, A takes 30 days to do the work.

A's 1 day's work = 1/30

B's 1 day's work = 1/90

(A + B)'s 1 day's work = 1/30 + 1/90 = 4/90 = 2/45

A and B together can do the work in 45/2 days.



Discussion

No Comment Found

Related InterviewSolutions