Math, asked by rudravarshney831, 6 months ago

A train covers half of its journey at a speed of 10 m/s and the other half at speed of 15 m/s.
The average speed of the train during the whole journey is
(a) 12.5 m/s
(b) 12.0 m/s
(C )7.5 m/s
(d) 5 m/s

Answers

Answered by xnk

2

12.5

Step-by-step explanation:

add both the speed and then devide it by two

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