Question

. A train takes 2 h to reach station B from station A, and
then 3 h to return from station B to station A. The
distance between the two stations is 200 km. Find :
(i) the average speed, (ii) the average velocity of the
train.
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Answer 1

Answer:

distance between the two stations is 200 km

A train takes 2 h to reach station B from station A

speed=Distance/Time=200km/2hr.=100km/hr

then 3 h to return from station B to station A

Speed=Distance/Time= 200km/3hr

(i) average speed=2xy/x+y=(2×100×200/3) ÷ (100+200/3) =40000/500/3=240km/hr

(