[Revenue Patwari Pre Aug, 2021]

10. A can complete a piece of work in 18 days, B in 20 days and C in 30 days. B and C together the work and are forced to leave after 2 days. The time taken by A alone to complete the remaining work(in days) is:

1. 10

2. 12

3. 15

4. 16

Correct Answer :

15