About 57 red pens were sold
<h3>Ratios and proportion</h3>
According to the information given:
number of packs of black pens sold: number of packs of red pens sold: number of packs of green pens sold = 7:3:4
- Total ratio = 7 + 3 + 4 = 14
- Total pen sold = 268
Number of red pens sold = 3/14 * 268
Number of red pens sold = 57 pens
Hence about 57 red pens were sold
Learn more on ratios here: brainly.com/question/2914376
