Question

A runner ran two laps around a 400m track. She completed the first laps in 50 seconds and then decreased her speed by 5% for the second lap.
Find:
a) her speed on the first lap
b) her speed on the second lap
c) her total time for the two laps
d) her average speed for the two laps

Answer 1

Answer:

(d) by finding the average speed of two laps

Answer 2

Answer:

the above answer is correct...