Problema Solution
The average cost per box of pencils, highlighters, and pens is $3.00. If pencils cost $1.00 per box, and highlighters cost $4.50 per box, what does a box of pens cost?
Answer provided by our tutors
let 'x' represent the cost of box of pens
(1 + 4.5 + x)/3 = 3
by solving we find
x = $3.5
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the cost of box of pens is $3.5.