Question 676545
A boy runs {{{v=1km/12min=1000m/12min}}} 

How long will he take to runs {{{d=400m}}}


{{{d=v*t}}}


{{{t=d/v}}}


{{{t=400m/(1000m/12min)}}}


{{{t=(400m*12min)/1000m}}}

{{{t=(2cross(4)cross(0)cross(0)cross(m)*12min)/5cross(10)cross(0)cross(0)cross(m)}}}


{{{t=(2*12min)/5}}}


{{{t=24min/5}}}


{{{t=4.8min}}}