Question

A car starts from Bangalore to Mumbai and returns back to Bangalore again in 20hrs. What is the average speed of the car if the odometer reading of the car when it started was 2200 km and when it finished was 3800 km?

• A. Average Velocity : 0km/hr, Average Speed : 0 km/hr
• B. Average Velocity : 0km/hr, Average Speed : 80 km/hr
• C. Average Velocity : 80km/hr, Average Speed : 80 km/hr
• D. Average Velocity : 80km/hr, Average Speed : 0 km/hr

Answer 1

The correct option is B

Average Velocity : 0km/hr, Average Speed : 80 km/hr

Total distance traveled = 3800 -2200 = 1600km

Total time taken= 20 hr

Average Speed = $\frac{1600}{20}$ =80 $\frac{km}{hr}$