Question

At the local grocer, the prices for apples are the following: 9 ounces for $1.89 or 1 pound for $2.49. How much will you save per pound, by buying the least expensive? Round to the nearest cent.
A.) $0.87
B.) $0.10
C.) $0.60
D.) $0.21

Answer 1

Answer: Option 'A' is correct.

Explanation:

Cost of  9 ounces of apples = $1.89

Cost of 1 ounce of apple is given by

$\frac{1.89}{9}=\ 0.21$

Now, if he bought 1 pound of apple,

Cost of 1 pound of apple = $2.49

Cost of 16 ounces = $2.49

(∵ 1 pound = 16 ounces)

Cost of 1 ounce of apple is given by

$\frac{2.49}{16}=\ 0.156$

So, Second option is the least expensive if he bought 1 pound of apple for $2.49

Then, he will save which is given by

$0.21-0.156=0.054\times 16= 0.87\ per pound$

Hence, option 'A' is correct.

Answer 2

9 ounces / 1.89 = 4.76
4.76 = 4.8
4.8 ounces to pounds is 0.30

1 pound / 2.49 = 0.40

So you would save B) $0.10.

Hope this Helps!!