Question

Distance between two stations A and B is 778km. A train covers the journey from A to B at 84 km/hr and returns back to A with uniform speed fo 56 km/hr. The average speed of the train during the whole journey is​

Answer 1

Answer:

Explanation:

The required average speed given by the formula,

Average speed

=2xyx+ykm/hrWhere,x=84kmph

y=56kmph

Average speed=2×84×5684+56=67.2kmph

Answer 2

Answer:

60 km per hour

Explanation:

ive given the pic hope you understand