Tap A fills a tank in 8 hours, Tap B in 12 hours. Together?

A4 hours

B4.8 hours

C5 hours

D6 hours

Explanation

Rate = 1/8 + 1/12 = (3+2)/24 = 5/24. Time = 4.8 hours.

Exam Relevance

Topic: Work and Time
Subtopic: Pipes

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