Question

At Five inlet pipes can fill a tank in 56 min. How long will it take for 7 pipes to fill the tank? How long will
for 4 pipes to fill the tank?
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Answer 1

Step-by-step explanation:

For 7 pipes:

56×7÷5= 78.4 mins

For 4 pipes:

56×4÷5=44.8 mins