Question
At 11 a.m., Olivia and Cindy raced off together from the starting point of a course. Olivia ran at an average speed of 3 m/s. Cindy ran at an average speed of 4 m/s. Upon reaching the end of the course, Cindy rested for 4 minutes. She then immediately ran back along the same route at 4 m/s. At 11.50 a.m., Olivia met Cindy.
  1. Find the total distance covered by the two runners when they met each other. Express your answer in km.
  2. Find the length of the trail in km.
4 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

At 11 a.m., Olivia and Cindy raced off together from the starting point of a course. Olivia ran at an average speed of 3 m/s. Cindy ran at an average speed of 4 m/s. Upon reaching the end of the course, Cindy rested for 4 minutes. She then immediately ran back along the same route at 4 m/s. At 11.50 a.m., Olivia met Cindy.
  1. Find the total distance covered by the two runners when they met each other. Express your answer in km.
  2. Find the length of the trail in km.