Question

6 pipes can fill a tank in 1 hour 24 minutes how long will it take to fill the tank if 7 pipes of the same type are used​

Answer 1

Answer:

1 hour 12 minutes

Step-by-step explanation:

1 hour 24 minutes = 60+24 = 84 minutes

6 pipes * 84 minutes = 7 pipes * x minutes

x = 6*84 / 7 = 504/7 = 72 minutes = 1 hour 12 minutes