Question

A bus travels 60 km in the first hour and 90 km in the second hour. Find the average speed of the bus in km/hr .​

Answer 1

average speed = total distance÷total time

= (90+60km)÷1+1h

= 150km/2h

= 75km/h

so the average speed =

75km/h

hope it helps.

Answer 2

Answer:

72km/hr

Step-by-step explanation:

Let the distance between P to Q be x

Time taken in going from P to Q =

60

x

Time taken in going from Q to P =

90

x

⇒ Average speed of bus = Total Distance travelled ÷ Total time taken =

60

x

+

90

x

2x

=72 km/hr

HOPE IT HELPS