1.5 Distance, Rate, Time Word Problems

Front

A passenger plane left New York and flew toward Las Vegas at an average speed of 217 km/h. A cargo plane left four hours later and flew in the same direction but with an average speed of 341 km/h. How long did the passenger plane fly before the cargo plane caught up?

Back

The passenger plane flew for 5 hours before the cargo plane caught up.

Front

Mike left the White House and drove south. Two hours later Alberto left driving 16 mph faster in an effort to catch up to him. After three hours Alberto finally caught up. Find Mike's average speed.

Back

24 mph

Front

A jet flew to Moscow and back. The trip there took seven hours and the trip back took ten hours. It averaged 129 km/h faster on the trip there than on the return trip. What was the jet's average speed on the outbound trip?

Back

430 km/h

Front

Maria left the hospital at the same time as Jill. They drove in opposite directions. Jill drove at a speed of 80 km/h. After three hours they were 450 km apart. How fast did Maria drive?

Back

70 km/h