A car covers the first 35 km in 15 minutes and the next 45 km in 25 minutes. What is the average speed of the car?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 120 km/h
Given that
A car covers the first 35 km in 15 minutes
He covers the next 45 km in 25 minutes
Formula used
The average speed = Total distance covered/total time taken
Calculation
Total distance covered = 35 + 45 = 80 km
Total time taken = 15 + 25 = 40 minutes = 40/60 = 2/3 hours
Hence, the average speed = 80/(2/3) = 120 km/h