Question

3 packs of pens costs $13.85, how many packs of pencil can we buy for $39.60? Form Proportion first

Answer 1

8 Packs

Explanation:

If you set up the form proportion:

(3packs/$13.85) x ($39.60/1) = 8.5777

Since you can not purchase half a pack, the answer rounds down leaving you with 8 packs of pens.