Problem:
When Dave walks to school, he averages steps per minute, each of his steps cm long. It takes him minutes to get to school. His brother, Jack, going to the same school by the same route, averages steps per minute, but his steps are only cm long. How long does it take Jack to get to school?
Answer Choices:
A.
B. min
C. min
D. min
E.
Solution:
Dave travels cm each minute, so the entire trip is long. Jack travels each minute, so it takes him or minutes to get to school.