Question

Two swim clubs are having a membership sale. Aqua Plus is offering a two-year membership for $237.36. Water World is offering an 18-month membership for $184.50. Which describes the swim club that has the lower-priced offer?

Answer 1

Divide the price by the number of months to find the monthly rate.
$237.36 ÷ 24 = $9.89 per month
$184.50 ÷ 18 = $10.25 per month

The two year club, Aqua Plus is cheaper

Answer 2

Aqua Plus is a better deal.

There is 24 months in two years.

Add $184.50 + $184.50 = $369

If you then subtract $369 - $237.36 = $131.64

Your paying $131.64 for 6 months more than Aqua Plus' deal.

You could buy two memberships at Aqua Plus and have it for four years and it would be cheaper than Water World 1 year and 6 months.