Multiple choice

A motorboat travels a certain distance at a constant speed of 40 kilometers per hour and takes 6 hours to complete the trip. If the boat makes the same trip but takes 8 hours, what would be its average speed in kilometers per hour?

  1. 15

  2. 20

  3. 24

  4. 30
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Distance = speed * time = 40 * 6 = 240 km. New speed = distance / new time = 240 / 8 = 30 km/h.

AI explanation

The total distance of the trip is speed multiplied by time, so 40 times 6 equals 240 kilometers. For the return trip taking 8 hours, the average speed is 240 divided by 8. This results in an average speed of 30 kilometers per hour.

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