Simultaneously 6272

The first inflow fills the tank in 4 hours. The second tributary in 6 hours. How long will it take to fill both tributaries simultaneously, but the species will start an hour later?

Correct answer:

x =  2.8 h

Step-by-step explanation:


x/4 + (x-1)/6=1

5x = 14

x = 14/5 = 2.8

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