How Much Work will me Left?If
A can do piece of work in 25 days and B can do the same work in 30 days. They work together for 5 days, how much of work left?
- 15/30
- 19/30
- 11/30
- 12/30
Answer: (2) 19/30
Explanation:-
A can do a piece of work = 25 days
A can do work in a day = 1/25
B can do a piece of work = 30 days
B can do work in a day = 1/30
They do work together in 5 days = 5(1/25 + 1/30)
= 5(6 + 5)/150
= 11/30
Remaining work = 1 – 11/30 = 19/30
Hence, the answer is (2) 19/30.
