Question

12. A car travels from Bangalore to Mysore at a
speed of 40 km/h. But while returning from
Mysore to Bangalore, it travels at a speed of 60
km/h. What is the average speed of the car in the
whole journey?​

Answer 1

Answer:

48 km/h

Step-by-step explanation:

Distance= x

Speed= 40 km/h and 60 km/h

Total time= x/40+x/60= 5x/120

Total distance = 2x (twice the distance between cities)

Av. speed:

2x/ 5x/120= 240/5= 48 km/h