Multiple choice

A car travels on a straight road from point $A$ to point $B$ in four hours, and then from point $B$ back to point $A$ in six hours. The distance between the two points is $240 km$. What is the car's average speed?

  1. $0 {km}/{h}$
  2. $48 {km}/{h}$
  3. $50 {km}/{h}$
  4. $60 {km}/{h}$
  5. $100 {km}/{h}$
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Average speed = Total distance / Total time. Total distance = 240 (A to B) + 240 (B to A) = 480 km. Total time = 4 + 6 = 10 hours. Average speed = 480 / 10 = 48 km/h.

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