Question

A car travels along a straight line for first half-time with speed 80 km/h and second half-time with speed 120 km/h. So, the average speed of the car will be: (a) 45 km/h (b) 50 km/h (c) 70 km/h (d) 60 km/h

Answer 1

Answer:

50 km/hr

explanation:

Answer 2

Answer:

$option(b) \: is \: correct$

$50 \frac{km}{hr}$