Q181
A can complete a piece of work in 10 days, B in 15 days and C in 20 days. A and C together for 2 days and A was replaced by B. In how many days, altogether, was the work complete ?
A.
6 days
B.
8 days
AnswerC.
15 days
D.
16 days
Answer: Option B
Solution
Answer: Option B
Solution:
work is done by B and C in 1 day
∴ work is done by B and C in