A bus covers the first 50 km of its journey in 40 minutes and covers the remaining 75 km in 40 minutes. What is the average speed (in km/h) of the bus?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is Option 3 i.e. 93.
Average speed = Total Distance/Total Speed = (50 + 75)/[(40 + 40)/60]
= 7500/80
= 375/4
= 93 3/4 km/h