Question 984311
circular track of 63 meters two runners run with speeds 9m/s and 7 m/s,
use rate * time = distance
a) the faster runner will complete the track in 7 seconds and the slower runner will complete the track in 9 seconds, therefore they will only meet at the beginning and the end which is 2 points.
b) running in opposite directions, the faster runner will overlap the slower runner at 63 - 49 + 2 = 16 points
note that the 2 is for the beginning and end