Question

Ray uses 1/4 of a gallon of gasoline to drive a distance of 5 1/2 miles. At this rate, how many miles can he drive on 1 gallon of gas?

Ray can drive ???? miles on 1 gallon of gas.

Answer 1

22 miles because 5 1/2 × 4 = 22

Answer 2

Ray can drive 22 miles on 1 gallon of gas.

Explanation:

Ray uses
`(1)/(4)` of a gallon of gasoline to drive a distance of
`5(1)/(2)` miles.

Ray drive a distance of 5.5 miles by using 0.25 gallon of gasoline.

Now we can solve this question by unitary method.

∵ Ray can drive on 0.25 gallon of gas = 5.5 miles

∴ Ray can drive on 1 gallon of gas =
`(5.5)/(0.25)`

= 22 miles

Ray can drive 22 miles on 1 gallon of gas.