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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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14 votes
14 votes
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 Jemenake
by
2.7k points

2 Answers

15 votes
15 votes

Answer:

4/5 hours

Explanation:

User Apurva Patil
by
2.7k points
12 votes
12 votes

Answer:

20/9 hours

Explanation:

I got it right on the quiz

User Daydayup
by
2.8k points
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