a boy runs 1 kilometre 12 minut how long will it take Run 400 metre
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Step-by-step explanation:
5 minutes is the correct Answer
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1
A boy runs v=1km%2F12min=1000m%2F12min
How long will he take to runs d=400m
d=v%2At
t=d%2Fv
t=400m%2F%281000m%2F12min%29
t=%28400m%2A12min%29%2F1000m
t=%282%2A12min%29%2F5
t=24min%2F5
t=4.8min
please make me brilliant
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