Question

ii) A car travels at a speed of 50 km/hr for 30
minutes, at 30 km/hr for next 15 minutes
and then 70 km/hr for next 45 minutes.
What is the average speed of the car?
[Ans: 56.66 km/hr]
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Answer 1

Answer:

Explanation:

hope it helps ya

Average speed is 56.67KM

25 KM in first 30 min

7.5 KM in next 15 min

52.5 KM in next 45 min

25 + 7.5 + 52.5 = 85 KM in 90 min

85/1.5 = 56.67 Avg speed