Question

7. A car covers a distance in 30 minutes with an average speed of 60 km per hour.
What should be the average speed of the car to cover the same distance in
20 minutes ?​

Answer 1

Answer:

Distance = 60 km/h * 1/2 h

= 30 km

Average speed = 30 km/20 min

= 30km /20/60h

= 30km/1/3h

= 30km*3h

= 90km/h