Rate of Speed

If a train travels 1,600 km in 16 hours, how fast is it moving?

• 60 km/hr

• 100 km/hr

• 120 km/hr

• 90 km/hr

If a person ran 32 kilometers at a rate of 8 kilometers/hr, how long did she run?

• 6 hours

• 8 hours

• 4 hours

• 12 hours

A crosstown bus travels 8 kilometers in 45 minutes. What is its average rate of speed?

• 4 km/hr

• 6.67 km/hr

• 8 km/hr

• 10.67 km/hr

Which of the following steps is important in solving distance, rate, and time problems?

• Working quickly.

• Doing the whole problem in your head.

• Drawing diagrams.

• Memorizing the average speeds of different trains.

A jet airliner flies 4100 km from New York City to San Francisco in 4.25 hours.  What is its average speed?

• 964.71 km/hr

• 96.47 km/hr

• 17,425 km/hr

• 174.25 km/hr

Grace drove her mom's car for 70 km and it took her 120 minutes.  What was her average speed in km/hr?

• .58 km/min

• 35 km/hr

• 8400 km/min

• 3.5 km/hr

A bus carrying Ava's friends to a soccer game traveled 10 km in 30 minutes. To determine the average speed of the bus in km/hr, your first step would be to __________?

• convert speed to distance

• convert minutes to hours

• convert hours to seconds

• convert seconds to hours

On a hike, Nathaniel traveled 2,800 m in 2 hours, what was his average speed in m/hr?

• 5,600 m/hr

• 140 m/hr

• 56 m/hr

• 1,400 m/hr

Abigail swims 1500 m in 30 minutes.  What is her average speed?

• 33.33 m/min

• 300 m/min

• 30 m/min

• 50 m/min

Kelsey ran 310 m in 25 seconds. What was Kelsey's average speed in m/s?

• 12.4 m/s

• 8.67 m/s

• 11 m/s

• 10 m/s