Question

Which is a better deal: 5 1.21 or 7 oz. for $2

A. 5 1.21
B. 7 oz. for $2
C. Both options are equally good deals.
D. It depends on your specific needs and preferences.

Answer 1

To compare the two options, calculate the price per unit for each option. The option with the lower price per unit is the better deal.

To determine which is a better deal, we can compare the price per ounce for each option. For Option A, we have 5 1.21, which means 5 units of 1.21. Let's assume each unit costs $x. So, the total cost for Option A is 5x. For Option B, we have 7 oz. for $2, which means the price per ounce is 2/7. To compare the two options, we need to determine if 5x is greater than or equal to 2/7.

By comparing the two quantities:

1. 5x >= 2/7
2. x >= 2/7 * (1/5) [[dividing by 5 on both sides]]
3. x >= 2/35 [[simplifying the expression]]

Since x represents the price per unit, it cannot be a fraction of a cent. Therefore, x must be greater than or equal to $0.02 (2/100). Since x is the price per unit, we can conclude that 5 1.21 is a better deal than the 7 oz. for $2.