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One pump can fill a tank of water in 5 hours. A second tank can fill the same tank in 4 hours. If both pumps are used together, how long will it take to fill the tank? 4/5 hours 20/9 hours 9/20 hours 5/4
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One pump can fill a tank of water in 5 hours. A second tank can fill the same tank in 4 hours. If both pumps are used together, how long will it take to fill the tank?

4/5 hours
20/9 hours
9/20 hours
5/4 hours

User Mehdi Yeganeh
by
7.0k points

2 Answers

6 votes

Answer:

4/5 hours

Explanation:

User Oliver Konig
by
7.5k points
4 votes

Answer:

20/9 hours

Explanation:

I got it right on the quiz

User Paulmorriss
by
7.4k points
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