2. Inter-School sports meet . Race

Have you heard about marathon races in which people
have to run about 40 kilometres ? People run marathon 
on roads because the track of the stadium is only 400 metres.

10 rounds of a stadium track = ----- km
[toggle title="Answer" float="left" width="100px" margin="0 20px 20px 0" status="closed"] 4 km[/toggle]

So,if you run a marathon on a stadium track, you will have
to complete ------ rounds!
[toggle title="Answer" float="left" width="100px" margin="0 20px 20px 0" status="closed"]  100 [/toggle]