UP Police SI Exam 23 Nov 2021 Shift 2 Solved Paper

Pipe A can fill a tank in 110 hours, Pipe B can fill the same tank in 132 hours and Pipe C can fill the same tank in 165 hours. If all three pipes are open together for first 22 hours and then pipe B is closed. In how many hours the remaining part of the tank is filled by Pipe A and Pipe C?