Math, asked by lalitasaxena650, 7 months ago

A train travel with a speed of 60 km/h and then
comes back with a speed 80 km/h.
find a - average speed b -
average velocity
of​

Answers

Answered by shashipatidar83
1

Answer:

Let distance from A to B = x/60 hr

time taken by train from B to A = x/8okm

Total time taken by train= x/60+x/80 = 7xhr/240

average speed = total distance/total time = = 2x/7x/ 240

400/7 km h-1

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