Pipe and Cistern Questions Practice Question and Answer
4 Q: A tank can be filled with water by two pipes A and B together in 36 minutes. If the pipe B was closed after 30 minutes, the tank is filled in 40 minutes. The pipe B can alone fill the tank in?
268 062d129446c73e80f8cdd9452
62d129446c73e80f8cdd9452- 145 minutesfalse
- 260 minutesfalse
- 375 minutesfalse
- 490 minutestrue
- 585 minutesfalse
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Answer : 4. "90 minutes"
Q: Pipe A alone & pipe B alone can fill the same tank in 5 hours and 4 hours respectively. If the ratio of efficiency of pipe A & B together to that of pipe C alone is 9:2, then find time taken by pipe C alone to fill the same tank?
245 062ff8be7fef7996822de1d8f
62ff8be7fef7996822de1d8f- 18 hoursfalse
- 25 hoursfalse
- 36 hoursfalse
- 410 hourstrue
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Answer : 4. "10 hours"
Q: A cistern has 3 pipes A, B and C. A and B can fill it in 3 and 4 hours respectively, and C can empty it in 1 hour. If the pipes are opened at 3 p.m., 4 p.m. and 5 p.m. respectively on the same day, the cistern will be empty at-
273 0630359612876110d0951efd9
630359612876110d0951efd9- 17.12 p.m.true
- 27.15 p.m.false
- 37.10 p.m.false
- 47.18 p.m.false
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Answer : 1. "7.12 p.m."
Q: Two pipes P and Q would fill a cistern in 24 hours and 32 hours respectively. If both pipes are opened together, find when the pipe “P” must be turned off so that the cistern may be just filled in 16 hours-
258 0639c90f84eaee21296c2aaf5
639c90f84eaee21296c2aaf5- 1After 8 hrsfalse
- 2After 12 hrstrue
- 3After 14 hrsfalse
- 4After 16 hrsfalse
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