Question

A girl rides a bicycle with a speed of 10 km/hour for 2 hours and 15 km / hour for next 3 hours .find distance moved by her and average speed

Answer 1

Given;
Speed:10km/h and 15km/h
Time:2hrs and 3 hrs
T.F.O:Average Speed
Solution:
Average Speed= Total Distance/Total Time
so, we need to find distance first.
Distance=speed*time
D=10*2
D=20km
now second Distance=15*3
D=45km
now, Average speed=45+20/3+2
Avg. Speed=65/5=13km/h.
Hope this answer helps you!!!