Question 507811
The ratio of flour to sugar is 10:1
That means the fraction of flour in any mixture is
{{{ 10/11 }}}
and the fraction of sugar is
{{{ 1/11 }}}
----------
{{{ (10/11)*40 = 36.364 }}} lb
and
{{{ (10/11)*50 = 45.455 }}} lb
The possible weights of flour are:
between 36.364 lbs and 45.455 lbs