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 Sample KCSE Preparation Mathematics Paper 2 Questions and Answers

A cold water tap running alone fills a bath in 10 minutes while a hot water tap fills it in 15 minutes. The drainage pipe can empty the full bath in 8 minutes. The cold and hot water taps are left raining for 4 minutes and then the drainage pipe is opened. Determine how many more minutes it will take to fill the bath.

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