Question

3. Which size package of pasta shown in the
table has the lowest unit price?
A. 3 oz
C. 16 oz
B. 8 oz
D. 32 oz
Size (oz) Cost ($)
3
0.99
8
2.59
16
5.69
32
11.89

Answer 1

Given:

Size (oz)     Cost ($)

3                   0.99

8                  2.59

16                5.69

32               11.89

To find:

The size package of pasta which has the lowest unit price.

Solution:

We know that,

$\text{Unit price}=\dfrac{\text{Total price}}{\text{Quantity}}$

Now, the unit prices for all size package of pasta are

$\text{Unit price}=\dfrac{0.99}{3}=0.33$

$\text{Unit price}=\dfrac{2.59}{8}=0.32375$

$\text{Unit price}=\dfrac{5.69}{16}=0.355625$

$\text{Unit price}=\dfrac{11.89}{32}=0.3715625$

Here, the lowest unit price is 0.32375. So, 8oz size package of pasta has the lowest unit price.

Therefore, the correct option is B.