Which is the better buy?

1. 100 erasers for $42 or
2. 80 erasers for $32

1 answer

To determine which option is the better buy, it is necessary to calculate the price per eraser for each option.

1. 100 erasers for $42:
Price per eraser = $42 / 100 = $0.42/eraser

2. 80 erasers for $32:
Price per eraser = $32 / 80 = $0.40/eraser

Based on these calculations, the second option of 80 erasers for $32 is the better buy, as it has a lower price per eraser.