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Pipes and Cisterns - Data Intensity 1 :: Discussion
| 45. | Two pipes A and B can fill a cistern in 12 and 15 minutes respectively. Both are opened together but after 3 minutes A is turned off. After how much more time will the cistern be filled? | |
| A. | 3 1/4 min | |
| B. | 5 1/4 min | |
| C. | 8 1/4 min | |
| D. | 9 1/4 min | |
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