IBPS Clerk Prelims Model Paper 23

© examsiri.com
Question : 55 of 100
 
Marks: +1, -0
Two pipes A and B can fill a tank in 15 hours and 20 hours, respectively. A third pipe C can empty the full tank in 25 hours. All the three pipes are opened in the beginning. After 10 hours, C is closed. In how much time will the tank be full?
Go to Question: