The diagram shows the distance between my home, H, and two towns, A and B.
It also shows information about journey times.
A
H
10 miles
Journey time
20 minutes
20 miles
Journey time
30 minutes
a)
What is the average speed of the journey from my home town to A?
b)
What is the average speed of the journey from my home town to B?
C
I drive from town A to my home and then to town B.
The journey time is 50 minutes.
What is my average speed?​