Question

(ii)A train travels the first 15 km at a uniform speed of 30 km/h, the next 75
km at a uniform speed of 50km/h and the last 10 km at a uniform speed of
20 km/h. Calculate the average speed for the entire journey.

Answer 1

Answer:

40 km/ hr

Explanation:

we here use the concept of average speed directly but before that we have to find the time