A car moves with a speed of 30 km/h–1for half an hour, 25 km/h–1 for one hour and 40 km/h–1 for two hours. Calculate the average speed of the car.
Answers
Answered by
1
Answer:
38.28
Step-by-step explanation:
Average speed = Total distance
Total Time
Total distance= 30×1/2 +25×1 +40×2
=15+25+80
=120
Total Time =1/2 +1 +2
= 7/2
Average speed = 120×2/7
= 240/7
=34.28
Similar questions