[PPSC Cooperative Society Inspector 2022]

1. A, B and C can do a piece of work in 12 days, 15 days and 20 days respectively. A and C left 3 days before the completion of the work. In how many days will the work be completed ?

1. 5 days

2. 7 days

3. 10 days

4. 12 days

Correct Answer :

7 days