Which is the better buy?

A. $15 for 12 pens
B. $27 for 20 pens

To determine which is the better buy, we need to calculate the price per pen for each option.

Option A: $15 for 12 pens
Price per pen = $15 / 12 pens = $1.25 per pen

Option B: $27 for 20 pens
Price per pen = $27 / 20 pens = $1.35 per pen

Based on the calculations, option A offers a better deal as it costs $1.25 per pen compared to option B's $1.35 per pen.

To determine which option is the better buy, we need to compare the price per pen for both options.

For option A, the price is $15 for 12 pens. To calculate the price per pen, divide the total price by the number of pens:

Price per pen = $15 / 12 = $1.25 per pen

For option B, the price is $27 for 20 pens. Let's calculate the price per pen:

Price per pen = $27 / 20 = $1.35 per pen

Comparing the price per pen for both options, we can see that option A has a lower price per pen ($1.25) compared to option B ($1.35). Therefore, option A is the better buy in terms of price per pen.