Question

A pipe can pump 1000 gallons of water in 4 hours.

Answer 1

First you need to find the amount of gallons per hour
1000 ÷ 4 = 250
then divide that by the amount of gallons you want to find (2500)
2500 ÷ 250 = 10
the answer is C. 10 hours

Answer 2

Answer:

Option C. $10\ hours$

Step-by-step explanation:

we know that

A pipe can pump $1000$ gallons of water in $4$ hours

so

by proportion

Find how long would it take the pipe to fill a $2500$ gallon pool

$\frac{4}{1,000}\frac{hours}{gallons} =\frac{x}{2,500}\frac{hours}{gallons}\\ \\x=2,500*4/1,000\\ \\x=10\ hours$