Answers

2015-10-16T21:39:10+05:30
(a) 4km/min as 
Speed= Distance/Time
So 100km/25 min=4km/min
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2015-10-16T23:53:01+05:30
Speed (v)= distance (s)/time (t)
=100/25
=4 km/min.
Therefore, option a). 4 km/min is the answer.
Hope this will help you. 
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