IBPS RRB PO Prelims 3 Aug 2024 Shift 3 Paper
© examsiri.com
Question : 55 of 80
Marks:
+1,
-0
Two pipes X and Y can fill a tank in 15 hours and 20 hours respectively. If they are turned on alternately for one hour each starting with X, then what is the time taken to fill the tank?
Go to Question: