Pipes and Cisterns - Solved Examples
Seven solved Examples on the topic Pipes and Cisterns Questions addressed in this video If two pipes function simultaneously, the reservoir gets filled in 6 hours. One pipe fills the reservoir 5 hours faster than the other. How many hours does the faster pipe take to fill the reservoir? a) 8 hours b) 10 hours c) 12 hours d) 9 hours A cistern has a leak which could empty it in 8 hours. A tap is opened which pours in 6 liters water per minute into the cistern. A full cistern can now be emptied in 12 hours. How many liters water does the cistern hold? a) 5000l b) 4680l c) 6840l d) 8640l A tank is filled by three pipes with uniform flow. The first two pipes operating simultaneously fill the tank in the same time in which the third pipe can fill the empty tank. The second pipe fills the tank 5 hours faster than than the first pipe and four hours slower than the third pipe. What is the time required by the first pipe to fill the tank? a) 6 hours b) 10 hours c)15 hours d) 30 hours Three pipes A, B and C can fill an empty tank in 30 minutes, 20 minutes and 10 minutes respectively. When the tank is empty, all the three pipes are opened. The pipes A, B and C pour in chemicals P, Q and R respectively ino the tank. What is the proportion of R in the tank after 3 minutes? a) 5/11 b) 6/11 c) 7/11 d) 8/11 Three taps - A, B and C, can fill a tank in 12, 15 and 20 hours respectively. If A is open all the time while B and C are opened for one hour each alternately, the tank will be filled in how much time? a) 6 hours b) 6 hours 40 minutes c) 5 hours 30 minutes d) 7 hours A tank is filled in 5 hours by three pipes - A, B and C working simultaneously. Pipe C is twice as fast as B and B is twice as fast as A. How long will A take to fill the tank working alone? a) 20 hours b) 25 hours c) 35 hours d) Cant be determined A tank is two-fifth full. Pipe A can fill the empty tank in 10 minutes while pipe B can empty it in 6 minutes. If both the pipes are opened simultaneously, how long will it take to empty or fill the tank completely? a) 6 minutes to empty b) 6 minites to fill c) 9 minutes to fill d) 9 minutes to empty."
