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.