Question

A train travels from a to b at a speed of X km per hour and B to A at a speed of y kilometre per hour .what is the average speed of whole journey

Answer 1

Answer:

average speed of whole journey = (a+b) / 2

Step-by-step explanation:

a speed of X km per hour

b speed of y kilometre per hour

average speed of whole journey = (a+b) / 2

Answer 2

hey....your answer:-

If distance is the same, the average speed can be calculated using the equation,

S = 2xy/(x+y) = 2*20*30/(20+30) = 1200/50 = 24 km/hr

The average speed of the journey = 24 km/hr.