Question

The ratio of speeds of a car, a train and a bus is 5 : 9: 4. The average speed of the car, the bus and the train is 72 km/hr together. What is the average speed of the car and the train together?

Answer 1

⇒ Average speed

= 5x + 9x + 4x/3 = 18x /3 = 6x km/hr.

⇛Therefore,

⇒ the average speed of the car and train together is

= 5x+9x2= 7x = 7 x 12 = 84 km/hr.

#ItzurAdi✨

Answer 2

Answer:

56 km/hr

Explanation:

For car:-

5/18*72=20

For train:-

9/18*72=36

20+36=56

Here 18=total(5+9+4)