A swimming pool holds 375,000 liters of water. Two large hoses are used to fill the pool. The first hose fills at the rate of 1,500 liters per hour and the second at the rate of 2,000 liters per hour. How many hours does it take to fill the pool completely?

Question

jim_thompson5910 · Answer

The first hose fills at a rate of 1500 liters per hour

if it runs for x hours, then it will fill up 1500x liters total

jim_thompson5910 · Answer

If the second hose runs for x hours as well, how many liters will the second hose fill up?

anonymous · Answer

Are you saying it should be even so...1500x=2000x???

jim_thompson5910 · Answer

no I'm not saying they are even since one fills up faster

but the second one does fill up 2000x liters in x hours

jim_thompson5910 · Answer

if you combine the two, they will give you a total of 1500x+2000x = 3500x

anonymous · Answer

ohh I see what you're getting at.. thanks.

jim_thompson5910 · Answer

so in x hours, the two hoses will provide 3500x liters of water

jim_thompson5910 · Answer

I'm sure you see what to do from here

anonymous · Answer

yeah i did thank you.

jim_thompson5910 · Answer

ok great, yw