Question

9. A train travels the first 15 km at a uniform speed of 30 km/h; the
next 75 km at a uniform speed of 50 km/h; and the last 10 km at a
a uniform speed of 20 km/h. Calculate the average speed for the
sentire train journey.
(4M)
A​

Answer 1

Answer:

A train travels the first +15km at a uniform speedof+30 km next 75km at a uniform speed of+50 km and the Las................. the average speed for the sentire train journey is 180 km.

Answer 2

Answer:

Answer is 40 km per hour