Question

If I am buying cakes which is the better option.
You can get 7 cakes for $182 or 5 cakes for $143.

Explain why that is the better choice.

Answer 1

To find which one is better, we can find the unit cost for both of them:

$\frac{182}{7} = \frac{x}{1}$
$x=26$

$\frac{143}{5} = \frac{x}{1}$
$x = 28.6$

This shows that the first deal is better because it costs less money.