IBPS RRB PO Prelims 21 Aug 2022 Shift 1 Paper

Question : 79 of 80

Marks: +1, -0

Three pipes A, B and C can fill a cistern in 6 hours. After working together for 2 hours, C is closed and A and B fill the cistern in 8 hours. Then find the time in which the cistern can be filled by pipe C?