Question
Tiffany and Daniel started running together along a cross country track. When Daniel completed the track in 21 minutes, Tiffany had run only 13 of the track. Tiffany’s average speed was 108 m/min slower than Daniel’s.
  1. How long was the cross country track in m?
  2. Find Tiffany’s average speed in m/min.
3 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

Tiffany and Daniel started running together along a cross country track. When Daniel completed the track in 21 minutes, Tiffany had run only 13 of the track. Tiffany’s average speed was 108 m/min slower than Daniel’s.
  1. How long was the cross country track in m?
  2. Find Tiffany’s average speed in m/min.