<PRE><B>Question 198449</B>
How many pounds of refined sugar costing $1.35 a pound must be added to 120
 pounds of another sugar brand of refined sugar costing $1.75 per pound to
 make a mixture costing $1.50 a pound?
;
Let x = amt of $1.35 sugar required
:
1.35x + 1.75(120) = 1.50(x + 120)
:
1.35x + 210 = 1.5x + 180
:
210 - 180 = 1.5x - 1.35x
:
30 = .15x
x = {{{30/.15}}}
x = 200 lb of $1.35 sugar
;
:
Check solution
1.35(200) + 1.75(120) = 1.5(200+120)
270 + 210 = 480</PRE>