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A farmer has rights to pump 1,500 gallons of water a minute from a river that runs through his property. He uses 0.9

million gallons of water a day to irrigate his crops. What is the fewest number of hours it takes him to pump the water

he needs in a day?

Verified Answer :

nobrains

The rate at which he pumps water is \(\frac{1500gal}{min}\).
To find the number of hours it takes to pump 0.9 million gallons, we can set a proportion.
\(\frac{1500gal}{min} = \frac{0.9*100000}{x} \\ \\ 1500x = 0.9*1000000 \\ x = 900000/1500 = 600min\).
The question asks for the time in hours, so convert 600 min to hours. One hour is 60 min.
\(600min* \frac{hr}{60min} = 10hr\)

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