Q1. A tap can fill a tank in 6hrs After half the tank is filled three more similar taps are opened What is the total time taken to fill the tank completely

Q2. Two pipes A and B can fill a tank in 90 minutes and 75 minutes respectively Both pipes are opened The tank will be filled in just 45 minutes if the pipe A is turned off after

Q3. Two inlet pipes can separately fill a cistern completely in 8 hours and 10 hours respectively They are operated for 2 hours after which the second pipe is closed and an outlet pipe which can drain out water from the full cistern in 20 hours is opened How much time will it take to fill the cistern completely from the instant of opening the outlet pipe

Q4. Two pipes can fill the tank in 4hrs 5hrs respectively while the third pipe can empty the tank in 20hrs if all the pipes are opened together then the tank will be filled in

Q5. One fill pipe A is 3 times faster than second fill pipe B and takes 32 min less than the fill pipe B When will the cistern be full if both pipes are opened together