Question

A car travels at a speed of 50km/hour for 30 minutes, at 30km/hour for next 45 minutes. What is the average speed of the car?

Answer 1

Answer:

64km/h

Explanation:

Average speed = total distance travelled (s)

______________________

total time taken (t)

= (50 + 30) km

____________

(0.5 + 0.75) h

= 80 km

______

1.25 h

= 64 km/h

Answer 2

Answer:

don't know..

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