The solution can be anything bigger than 13/6.
For example: 3, 4, 5, 6...ect
Answer:
It would take them 6 hours to fill an empty tank.
Step-by-step explanation:
Add the amount of time it takes Pipe A and Pipe B to fill an empty tank together (5 + 7) and then divide your sum by two. You should get 12 / 2 = 6.
<em>Hope This Helps!</em>
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