Question

To on a
100km track, the train moves
the first 50km with uniform
of 50km/hootlow fast must the train
travel the next 50km so as to have an
of 60kmla
for the entire
average speed
trip?​

Answer 1

Answer:

75km/hr

Explanation:

we know by formula vavg=2(v1v2)/v1+v2

60=2(50×x)/50+x

or, 3000+60x=100x

or, 40x=3000

or, x=75

so, the required speed is 75km/hr.

I hope it helps you

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