Q197
A can do a piece of work in 14 days which B can do in 21 days. They begin together but 3 days before the completion of the work. A leaves off. The total number of days to complete the work is ?
A.
B.
C.
Answer
D.
Answer: Option C
Solution
Answer: Option C
Solution:
Now, work is done by A and B in 1 day