defence exam CRPF Constable Tradesmen & Technical 2023 Mock Test Quantitative Aptitude Time and Work
A, B and C can complete a piece of work individually in 7\(\frac{1}{2}\) days, 15 days and 30 days, respectively. A and B start working but A quits the job after 3 days. Then C joined B and both did the work till the completion of the work. In how many days will the whole work be completed?
1
12 days
2
7 days
3
8 days
4
6 days