Question

A train travels a distance with a speed of 30m/s and returns with a speed of 50m/s. Find average speed of the train​

Answer 1

Answer:

37.5 m/s

Explanation:

The formula 2v₁v₂/v₁+v₂ is used in this case

here,

v₁=30 m/s

v₂=50 m/s

by substituting the formula we get,

=2v₁v₂/v₁+v₂

=2×30×50/30+50

=3000/80

=37.5 m/s

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Answer 2

Answer:

Hi this is Vansh, I am new here. plz become my friend.

Explaination:

your answer is 40m/s

Average speed=sum of numbers/total numbers

Average speed=50+30m/s/2

Average speed=80m/s/2

Average speed=40m/s