# A car gets 35 miles per gallon. How many gallons do you need to go 700 miles?

**Solution:**

The stated problem is a problem of direct variation or proportion. In other words the car’s consumption of gas is proportional to the distance it covers. The more it travels the more fuel it consumes. How much gas it consumes depends on the distance travelled by the car.

In the problem stated above the car has a mileage of 35 miles to a gallon. So the amount of gallons of fuel the car will consume in travelling one mile will be calculated as follows:

35 miles → One gallon

1 mile → 1 × 1/35 Gallons

Therefore to cover one mile the car requires 1/35 gallons of gas. Therefore to cover 700 miles the car will consume:

700 miles × 1/35 gallons per mile

= 700/35 gallons

= 20 gallons of gas or fuel.

## A car gets 35 miles per gallon. How many gallons do you need to go 700 miles?

**Summary:**

A car which covers 35 miles to a gallon will consume 20 gallons of fuel or gas to cover 700 miles.

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