Question

A train travels some distance with a speed of 30km/hr aND returnsee with a speed of 45km/hr . Calculate the average speed

Answer 1

hi

here is ur answer

average speed=total speed/2
here,total speed=(30+45)kmph
=75kmph
average speed =(75/2)kmph
=37.5 kmph
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Answer 2

30+45/2=75/2= 37.5 km/hr = 37.5*1000/3600m/s =375/36 m/s = 10.41m/s