Question

3) A bus moves 30 Km in 30 min and the next 30 Km in 40 min. Calculate the average speed for the entire journey​

Answer 1

Answer:

average speed-total distance/total time

here time is in minutes we have change it to seconds

..30min=30x60sec=1800sec

40mim 40x60sec=2400sec

distance is in km we have to change it into m

30km-30x1000m-30000m

30km-30x1000m-30000m

now.

average speed= totale distance /total time

= (30000+30000)/(1800+2400)

=60000/4200

=14.28m/s