Pipes and Cisterns Practice Question and Answer
8 Q: One filling pipe P is three times faster than another filling pipe Q, if P can fill tank in 24 hours, then what is the time taken to completely fill the tank if both the pipes are opened together?
637 062c3f5e931b6d20155fc54ee
62c3f5e931b6d20155fc54ee- 112 hoursfalse
- 218 hourstrue
- 316 hoursfalse
- 414 hoursfalse
- 5None of thesefalse
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Answer : 2. "18 hours"
Q: A Cistern can be filled by a tap in 4 hours while it can be emptied by another tap in 9 hours. If both the taps are opened simultaneously then after how much time will the cistern get filled?
837 0613b17f8a0ff2d3b5e8f7657
613b17f8a0ff2d3b5e8f7657- 16.5 hrsfalse
- 27.2 hrstrue
- 32.5 hrsfalse
- 43 hrsfalse
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Answer : 2. "7.2 hrs"
Q: Two pipes A and B can fill a tank in 3 hours and 5 hours. Then, if all three are open, the tank is filled in 30 hours. Find in how many hours a third pipe will empty the tank?
836 0611f7aa3b14e9c13a8ec0ccb
611f7aa3b14e9c13a8ec0ccb- 14 hoursfalse
- 22 hourstrue
- 38 hoursfalse
- 46 hoursfalse
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Answer : 2. "2 hours"
Q: Water flows in to a tank 15 m.×10 m. through a rectangular pipe 2 m.×1.5 m. at 20 km./hr. In how much time will the water level in the tank rise by 3m.?
899 060ba01f141fbe0438167b5ad
60ba01f141fbe0438167b5ad- 123 secondsfalse
- 227 secondstrue
- 315 secondsfalse
- 419 secondsfalse
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Answer : 2. "27 seconds "
Q: A pipe can fill a tank in x hours and an another can empty it in y hours. In how many hours will they together fill it. If y>x?
709 060b60d12adafcb4fbcf369bf
60b60d12adafcb4fbcf369bf- 1$$ {xy\over y-x}{hrs}$$true
- 2$$ {y-x\over xy}{hrs}$$false
- 3$$ {2yx\over y-x}{\ hs}$$false
- 4Can’t be determinedfalse
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Answer : 1. "$$ {xy\over y-x}{hrs}$$"
Q: 20 buckets of water fill a tank when the capacity of each bucket is 14.5 litres. How many buckets will be required to fill the same tank if the capacity of each bucket is 10 litres?
6479 0608fbfdd7748471dd98d3400
608fbfdd7748471dd98d3400- 131false
- 229true
- 332false
- 430false
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Answer : 2. "29"
Q: Water flows into a tank which is 200 m long and 150 m wide, through a pipe of cross-section (0.3m x 0.2m) at 20 km/h. In what time will the water level be 8 m?
1 0608be1128899c91069d3626b
608be1128899c91069d3626b- 1450false
- 2500false
- 3200true
- 4250false
- 5350false
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Answer : 3. "200 "
Q: Two pipes, A and B, can fill a tank in X minutes and 6 minutes, respectively. If both the pipes are used together, then they take 1.5 minute to fill the tank. Find the value of X.
810 0608292eb60a06a7ffdaaf8a3
608292eb60a06a7ffdaaf8a3- 11 minfalse
- 24 minfalse
- 35 minfalse
- 42 mintrue
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