Question

Excluding stoppages, the speed of a bus is 80 kmph and including stoppages, it is 60 kmph. For how many minutes does the bus stop per hour?

• A. 12
• B. 15
• C. 18
• D. 24

Answer 1

Answer:

B. 15

Distance covered by bus without stoppage at 80 km/hr in one hour = 80 km Distance covered by bus with stoppage at 60 km/hr in one hour = 60 km Time for stop per hour = (80km - 60km) / 80km/hr ⇒ Time for stop per hour = 1/4 hr Time for stop per hour = 1/4 × 60 min = 15 min