Dwight has sold 22 cars and he sells 2 each week.
jim has sold 8 cars and he can sell 4 a week.
how many weeks will it take jim to catch up with dwight?

[? ]weeks

Im thinking it is 7 weeks.

I think the question would be, In an auto race which is 25,000 meters, there are ten laps covered. How long is the first lap, and what is the percentage of the lap to the total distance? 
So that the calculation will be
 25000/ 10 = 2500 m (Length of the first lap)
the percentage of the lap to the total distance
(2500/25000) × 100 = 10 %