SOLUTION: The circuit of a motor racing track is 3 km in length. In a race, a car goes 25 times round the circuit in 30 minutes. What is the average speed of the car? a. 75 km/hour b. 90 k

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Question 1124762: The circuit of a motor racing track is 3 km in length. In a race, a car goes 25 times round the circuit in 30 minutes. What is the average speed of the car?
a. 75 km/hour
b. 90 km/hour
c. 150 km/hour
d. 750 km/hour
Answer by ikleyn(52775) About Me  (Show Source):
You can put this solution on YOUR website!
.
The total distance is  25*3 = 75 kilometers.


30 minutes = 0.5 of an hour.


The average speed = total_distance%2Ftotal_time = 75%2F0.5 kilometers per hour.