A car covers a distance in 40 minutes with an average speed of 60 km/h. What should be the average speed to cover the same distance in 25 minutes?

Solution:

Distance covered by the car in 40 minutes at an average speed of 60 km/hour:

Distance(D) = Speed(S Km/hour) × Time (in hours)

Distance(D) = 60 × (40/60) = 40 Km

Speed(S) required to cover the same distance i.e. 40 km in 25 minutes is calculated as follows:

Time(T) = Distance/Speed

Speed(S) = 40/(25/60)

Speed = (40 × 60 )/25

Speed = 96 km/h

✦ Try This: A car covers a distance in 80 minutes with an average speed of 50 km/h. What should be the average speed to cover the same distance in 60 minutes?

Distance covered by the car in 50 minutes at an average speed of 50 km/hour:

Distance(D) = 50 × (80/60) = 75 Km

Speed(S) required to cover the same distance i.e. 75 km in 25 minutes is calculated as follows:

Time(T) = Distance/Speed

Speed(S) = 75/(60/60)

Speed = (75 × 60 )/60

Speed = 75 Km/hour

☛ Also Check: NCERT Solutions for Class 8 Maths Chapter 13

NCERT Exemplar Class 8 Maths Chapter 10 Problem 70

A car covers a distance in 40 minutes with an average speed of 60 km/h. What should be the average speed to cover the same distance in 25 minutes

Summary:

A car covers a distance in 40 minutes with an average speed of 60 km/h. The average speed to cover the same distance in 25 minutes will be 96km/hour

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