Pipes & Cisterns · Question 1 · Easy

Pipes & Cisterns question 1

Pipe A can fill a tank in 10 hours and pipe B can fill it in 15 hours. If both are opened together, how long will they take to fill the empty tank?

1. 6 hours
2. 8 hours
3. 5 hours
4. 12 1/2 hours

Next: A tap fills a tank in 6 hours, while an outlet empties the full tank in 9…

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