Answer:
Total distance covered by motorcyclist in her entire journey = 140 km
Step-by-step explanation:
A motorcyclist rides for 1.5 hours at a speed of 80 km/h
So distance covered = Speed* time = 80*1.5 = 120 km
Then she encounters traffic and rides 20 km at an average speed of 25 km/h.
So distance covered when she travels at 25 km/h = 20 km
Total distance covered by motorcyclist = 120+20 = 140 km