The Hadleys took a car trip to visit relatives . Mr. Hadley drove for 2 hours and covered 100 miles . For the last 60 miles , the teenage son, Hank , drove . He took 1 hour to complete this leg of the trip. What was the average speed (arithmetic mean) , in miles per hour , for the trip ?

Andrew drove from A to B at 60 miles per hour. Then he realized that he forgot something at A, and drove back at 80 miles per hour. He then zipped back to B at 90mph. What was his approximate average speed in miles per hour for the entire trip?

If Edna drove s miles in t hours, which of the following represents her average speed, in miles per hour?

An elephant traveled 7 miles at an average rate of 4 miles per hour and then traveled the next 7 miles at an average rate of 1 mile per hour. What was the average speed, in miles per hour, of the elephant for the 14 miles?

A car travels from Twon A to Twon B at an average speed of 40 miles per hour, and returns immediately along the same route at an average speed of 50 miles per hour. What is the average speed in miles per hour for the round - trip?

In traveling from city A to city B, John drove for 1 hour of 50 mph and for 3 hours at 60 mph. What was his average speed for the whole trip?

Waugh jogged to a restaurent at x miles per hour, and jogged back home along the same route at y miles per hour. He took 30 minutes for the whole trip. If the restaurant is 2 miles form home along the route he too, what is the average speed in miles per hour at which he jogged for the whole trip ?

Chelsea traveled from point A to point B and then from point C. If she took 1 hour to complete the trip with an average speed of 50 mph, what is the total distance she traveled in miles?

A train travels at an average speed of 50 miles per hour. It travels for 2 1/2 hours.

A bike messenger delivers a package from the courthouse to a law firm downtown, traveling at an average speed of 24 miles per hour. On the way back, the bike messenger gets stuck in traffic, which reduces his average speed for the return trip by 12.5 percent . What was the bike messenger's average speed, in miles per hour, for the round trip?

A man drove a car at an average rate of speed of 45 miles per hour for the first 3 hours of a 7-hour car trip. If the average rate speed for the entire trip was 53 miles per hour, what was the average rate of speed in miles per hour for the remaining part of the trip?