How much gas will it take to drive 600 miles if I get 25 the gallon?

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Gas required (in gallons) = Distance (in miles) / Fuel efficiency (in miles per gallon)

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Plugging in the values given in the question:

```

Gas required = 600 miles / 25 miles per gallon

= 24 gallons

```

Therefore, it will take approximately 24 gallons of gas to drive 600 miles with a fuel efficiency of 25 miles per gallon.