Question

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

Answer 1

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Let the distance be x km

We know Distance = speed × time

Distance = x km

Speed = 60 km/hr

Time = 30 minutes = 0.5 hour

Distance = 60km/hr × 0.5 hour

Distance = 60 × 0.5 km

Distance = 30 km

What should be the average speed to cover the same distance in 20 minutes?

Distance = 30 km

Time = 20 minutes = 20/60 hour

Average speed = to find out

Speed = 30 km/20/60 hour

Speed = 30 × 60/20 km/hour

Speed = 30 × 3 km/hour

Speed = 90 km/hr

The average speed of the car should be 90 km/hr to cover the same distance in 20 minutes.

Answer: The average speed of the car should be 90 km/hr to cover the same distance in 20 minutes.

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