CET 2025 Slot 3 · Quant – Page 12
All 50 Quant questions of CET 2025 Slot 3. Tap Show answer, or open the detailed solution (free login). Page 12 of 12.
A bath can be filled by the cold water pipe in 10 minutes and by the hot water pipe in 15 minutes. A person leaves the bathroom after turning on both the pipes. He returns just when the bath should have been full. Finding, however, the waste pipe was open, he closes it. In 4 minutes more, the bath is full. In what time will the waste water pipe empty it?
- 6 min
- 8 min
- 9 min
- 12 min
- 10 min
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Answer: C. 9 min
X and Y can do a piece of work in 20 days and 12 days respectively. X started the work alone and then, after 4 days, Y joined him till the completion of the work. How long did the work last?
- 6 days
- 10 days
- 15 days
- 20 days
- 32 days
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Answer: B. 10 days