A large water tank has two inlet pipes (a large and a small one) and one outlet pipe. It takes 2 hours to fill the tank with t

Question

A large water tank has two inlet pipes (a large and a small one) and one outlet pipe. It takes
2
hours to fill the tank with the large inlet pipe. On the other hand, it takes
5
hours to fill the tank with the small inlet pipe. The outlet pipe allows the full tank to be emptied in
7
hours. Assuming that the tank is initially empty, what fraction will be filled in
1
hour if all three pipes are in operation? Your answer should be a fraction in simplest form, without spaces, e.g. 1/2.

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Diễm Thu 6 months 2021-07-19T00:12:55+00:00 1 Answers 23 views 0

Answers ( )

    0
    2021-07-19T00:14:26+00:00

    Answer:2x+2

    Step-by-step explanation:

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