Pipe and Cistern Questions Practice Question and Answer
4 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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Answer : 2. "After 12 hrs"
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: 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?
237 062c3f5e931b6d20155fc54ee
62c3f5e931b6d20155fc54ee- 112 hoursfalse
- 218 hourstrue
- 316 hoursfalse
- 414 hoursfalse
- 5None of thesefalse
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Answer : 2. "18 hours"
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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