The distance between two stations a and b is 778 km. a train covers the journey from a to b at 84 km per hour and returns back to a with a uniform speed of 56 km per hour. find the average speed of train during the whole journey.
Answers
Answered by
3
Hey
The required average speed given by the formula,
Average speed =[2xy/(x+y)]km/hr.
Where,
x = 84 kmph.
y = 56 kmph.
Average speed, = [(2*84*56)/(84+56)]
= 67.2 kmph.
I hope its help you
mark brainliest
The required average speed given by the formula,
Average speed =[2xy/(x+y)]km/hr.
Where,
x = 84 kmph.
y = 56 kmph.
Average speed, = [(2*84*56)/(84+56)]
= 67.2 kmph.
I hope its help you
mark brainliest
Similar questions