Question

Find the Unit Price for each bottle of conditioner. Which bottle of hair conditioner is the best buy?

8 oz for $1.49

12 oz for $2.29

15 oz for $2.75

20 oz for $3.89

Answer 1

D.

Explanation:

We know that to find unit price, we divide the unit in the numerator by the quantity in the denominator.

For the first option, we must put $1.49 as the numerator and 8 as the denominator. It will then look like this:

• 
  `(1.49 / 8 )/(8 / 8\\)`

• Then we must divide 1.49 by 8. This will get us $0.18625.

For our second option, we must put $2.29 as the numerator, and 12 as the denominator. It will look like this:

• 
  `(2.29 / 12 )/(12 / 12\\)`
• Then we must divide 2.29 by 12. This will get us $0.19083 (rounded)

For our third option, we must put $2.75 as the numerator, and 15 as the denominator. It will look like this:

• 
  `(2.75 / 15 )/(15 / 15)`

• Then we must divide 2.75 by 15. This will get us $
  `0.18333` (rounded)

For our final option, we must put $3.89 as the numerator, and 20 as the denominator. It will look like this:

• 
  `(3.89 / 20 )/(3.89 / 20)`
• Then we must divide 3.89 by 20. This will get us $0.1945 (rounded)

Therefore, the last option is the best buy because $0.18625 > $0.18333.