If a bus covers 240 km in 3 hours, what is its average speed in km/hr?

60 km/hr

80 km/hr

100 km/hr

None of these

To find the average speed, divide the total distance by the total time:

Average speed = Total distance ÷ Total time

= 240 km ÷ 3 hr

= 80 km/hr

So, the bus's average speed is 80 km/hr.