How long must a driver take to drive the final 70 miles of a trip if he wants to average 50 miles an hour for the entire trip and during the first part of the trip he drove 50 miles in `1 1/2` hours? `54\ m in` b. `\ 1\ hou r` c. `66\ m in` d. `7\ m in`

How long must a driver take to drive the final 70 miles of a trip if he wants to average 50 miles an hour for the entire trip and during the first part of the trip he drove 50miles in 1(1)/(2) hours? 54backslash m in b.backslash1 hour c.66backslash m in d .7backslash m in

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

A cyclist travels 20 miles at a second of 15 miles per hours. If he returns along the same path and the entire trip takes 2 hours, at what spped did he return?

A train travel at an average of 50 mile per hour for 2 1/2 hours and then travels to a speed of 70 miles per hour for 1 1/2 hors. How far did the train travel in the entire 4 hours? 120 m i l e s b. 200 m i l e s c. 10 m i l e s d. 230 m i l e s

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?

Rory left home and drove straight to the airport at an average speed of 45 miles per hour. He returned home along the same route, but traffic slowed him down and he only averaged 30 miles per hour on the return trip. If his total travel time was 2 hours and 30 minutes, how far is it, in miles, from Rory's house to the airport?

At his usual rowing rate, Rahul can travel 12 miles downstream in a certain river in 6 hours less than it takes him to travel the same distance upstream. But if he could double his usual rowing rate for his 24-mile round trip, the downstream 12 miles would then take only one hour less than the upstream 12 miles. What is the speed of the current in miles per hours? 1 1/3 b. 1 2/3 c. 2 1/3 d. 2 2/3

Mac travels from A to B a distance of 250 miles in 5 1/2 hours. He returns to A in 4 hours 30 minutes. His average speed is:

The train travelling at a speed of 75 mph enters a tunnel 3 1/2 mile long. The train is 1/4 mile long. How long does it take for the train to pass through the tunnel from the moment the front enters to the moment the rear emerges? 2. 5 m in b. 3 m in c. 3. 5 m in d. 3. 2 m in