Question
Quantitative Ability and Data Interpretation Question on Time and Work
A and B can do a piece of work in 21 and 24 days respectively. They start the work together and after some days A leaves the work and B completes the remaining work in 9 days. After how many days did A leave?
A
5
B
7
C
8
D
6
Answer
7
Explanation
Solution
The correct option is (B): 7