Question

14.

Mrs. Wilkinson, the P.E. teacher, is pairing off students to race against each other. Jill can
run 6 yards per second, and Sandra can run 8 yards per second. Mrs. Wilkinson decides to
give Jill a head start of 50 yards since she runs more slowly. Once the students start
running, Sandra will quickly catch up to Jill. How far will Sandra have to run?
a) 200 yards
b) 25 seconds
C) 25 yards
d) 200 seconds

Answer 1

A) 200 yards

Explanation:

Difference in the distance = 50 yards

Difference in speed = 8 - 6 = 2 y/s

Time to cover the gap is:

50/2 = 25 seconds

Sandra will run the distance:

25*8 = 200 yards

Answer 2

• a) 200 yards

Explanation:

Difference in the distance = 50 yards

Difference in speed = 8 - 6 = 2 y/s

Time to cover the gap is:

• 50/2 = 25 seconds

Sandra will run the distance:

• 25*8 = 200 yards