AFOQT Arithmetic Reasoning
If a car uses 1.5 gallons of gas every 30 miles, how many miles can be driven with 6
gallons of gas? - correct answer let x = miles per gallon
1.5x = 30 mpg
divide both sides by 1.5 (the left cancels)
1.5/30 or move decimal place to left of each 15/300 = x
x = 20mpg
so now 6(20) = answer
120 miles = answer
A car has a gasoline tank that holds 20 gallons. When the gauge reads 1/4 full, how
many galleons are needed to fill the tank? - correct answer let x = the gallons needed
for a full tank of 20 gal.
1/4 of 20 = .25(20)
so there is currently 5gal. already in the tank of 20.
20 - 5 = x
x = 15gal.
15gal. = answer
An airplane flying a distance of 875 miles used 70 gallons of gasoline. How man gallons
will it need to travel 3000 miles. - correct answer X = number of gallons needed to
travel 3000 miles
875/70 = 3000/X
875X = 210,000
divide both sides by 875 (left cancels)
210,000 ÷ 875 = X
X = 240 gallons needed to travel 3000 miles
