mathquestioner
New member
- Joined
- Mar 9, 2008
- Messages
- 1
Hi,
I'm having touble with the following word problem:
A car traveled 10 miles at an average speed of 20 miles per hour and then traveled the next 10 miles at an average speed of 40 miles per hour. What was the average speed, in miles per hour, of the car for the 20 miles?
Of course I'm tempted by the idea that it was an average speed of 30 miles per hour, but I know it can't be that simple. Can anyone help? I'm not sure how to approach this.
Thanks very much.
I'm having touble with the following word problem:
A car traveled 10 miles at an average speed of 20 miles per hour and then traveled the next 10 miles at an average speed of 40 miles per hour. What was the average speed, in miles per hour, of the car for the 20 miles?
Of course I'm tempted by the idea that it was an average speed of 30 miles per hour, but I know it can't be that simple. Can anyone help? I'm not sure how to approach this.
Thanks very much.