Question

A train travels at 60 km/hr for 0.52 hr; at 30 km/hr for the next 0.24 hr and at 70 km/hr for the next 0.71hr. What is the average speed of the train?​

Answer 1

Answer:

Explanation:

Av velocity=( 60*0.52+30*0.24+70*0.71) /(0.52+0.24+0.71)

=(31.2+7.2+49.7)/(1.47)

=88.1/1.47

=60km/h

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