Question

Which is the better buy of the following items:

a. a 15 ounce can of peas for 49 cents or a 24 ounce can for 98 cents?

b. three packages of margarine for 99 cents or five for $1.59?

c. 4 pounds of beans for $2.25 or 6 pounds for $3.95

Answer 1

1. 15 ounce can of peas for 49 cents would be a better buy

2. five for $1.59 would be a better buy

3. 4 pounds of beans for $2.25 would be a better buy

Work for 1.

For the first question, we can use unit price to determine which is the better buy. The unit price of the 15 ounce can of peas is 3.27 cents per ounce, while the unit price of the 24 ounce can is 4.08 cents per ounce. Therefore, the 15 ounce can is the better buy.

Work for 2.

For the second question, we can use unit price again. The unit price of three packages of margarine is 33 cents per package, while the unit price of five packages is 31.8 cents per package. Therefore, buying five packages is the better buy.

Work for 3.

To determine the better buy, we can use unit price once again. The unit price of 4 pounds of beans is 56.25 cents per pound, while the unit price of 6 pounds of beans is 65.83 cents per pound. Therefore, buying 4 pounds of beans for $2.25 is the better buy.

Answer 2

c

Explanation:

To compare the price per ounce of peas, we can divide the cost by the number of ounces in each can:15 ounce can: 49 cents / 15 ounces = 3.27 cents per ounce24 ounce can: 98 cents / 24 ounces = 4.08 cents per ounceBased on this calculation, the 15 ounce can of peas for 49 cents is the better buy in terms of price per ounce.b. To compare the price per package of margarine, we can divide the cost by the number of packages:Three packages: 99 cents / 3 packages = 33 cents per packageFive packages: $1.59 / 5 packages = 31.8 cents per packageBased on this calculation, the five packages for $1.59 is the better buy in terms of price per package.c. To compare the price per pound of beans, we can divide the cost by the number of pounds:4 pounds: $2.25 / 4 pounds = 56.25 cents per pound6 pounds: $3.95 / 6 pounds = 65.83 cents per poundBased on this calculation, the 4 pounds of beans for $2.25 is the better buy in terms of price per pound.