There are 1000 metres in one kilometre. Therefore, 400 metres is equal to 0.4 kilometres.
Therefore, at a rate of 8 minutes per kilometre, it would take 8 x 0.4 = 3.2 minutes to walk 400 metres.
100 seconds
It does take 34 minutes.
it would take 3 minutes
It would take about 45 minutes.
About ten minutes
About 30 minutes
3andhalf minutes
It would take 220 minutes = 3 hours 40 minutes.
It would take about 3 hours 19 minutes.
It would take 13 minutes.
It would take about 5 hours and 55 minutes.
it would take 7020 minutes