Question

A car moves for half of its time at 80 km/h and for rest half of time at 40 km/h. Total distance covered is 60 km. What is the average speed of the car

• A. 60 $km/h$
• B. 80 $km/h$
• C. 120 $km/h$
• D. 180 $km/h$

Answer 1

Answer: (A)

60 $km/h$

Answer 2

Time average speed = $\frac{v_{1} + v_{2}}{2} = \frac{80 + 40}{2} = 60km/hr$.