Question 1083655
In terms of just units:
[ km / L } x [ L ] / [ km / hr ] = hrs
{{{ ( ( 100 / 7 )*56 ) / 120 }}}
{{{ 800 / 120 = 6.667 }}} hrs
{{{ .667*60 = 40 }}} min
9 AM + 6.667 = 3:40 PM
when tank will be empty