Mathematics · Pipes and Cisterns
Three taps, P, Q and S, can fill an empty cistern in 15 minutes. Tap P alone can fill it in 30 minutes and tap Q alone in 45 minutes. How long will tap S alone take to fill the cistern?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 160 minutes
- 230 minutes
- 345 minutes
- 490 minutes✓
Correct answer
90 minutes
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