Excluding stoppages, the speed of a bus is 60 km/h and Including stoppages, it is 42 km/h. For how many minutes does the bus stop per hour?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 18
The minutes does the bus stop per hour = {(Fast speed - slow speed)/fast speed} × 60
= {(60 - 42)/60} × 60 = 18 minutes