Wendy and rick left the library at noon and cycled 480 meters to the town hall . wendy cycled at a spees of 80 meters per minute. rick's speed was 20 meters per minute slower than wendy's. after cycling 0.25 of the distance wendy stopped and waited for rick to catch up with her. how many minute did wendy wait for rick show answer in minute

Cycled 480 meters but after cycling 0.25 of the distance Wendy stopped and waited for Rick to catch up 

0.25 (480) = 120 meters

Wendy cycled at a speed of 80 meters per minute = 120 /80 = 1.5 minutes
Rick's speed was 20 meters per minute slower than Wendy's = 120 / 60 = 2 minutes

so 2 minutes -  1.5 minutes = 0.5 minutes

answer
Wendy waited 0.5 minutes for Rick