Question

Pamela is shopping for bottled water at the supermarket. Which is the best buy?

A 1 2-liter bottle for $0.89
B 3 1-liter bottles for $1.50
C 24 0.5-liter bottles for $5.25
D 36 0.25-liter bottles for $4.75

Explain correctly. No nonsense, please.

Thank you

Answer 1

The answer is C 24 0.5- liter bottles for 5.25

First, add up how many full liters are in each answer

a - 2 liters
b - 3 liters (3 + 1 = 3)
c- 12 liters (24 x 0.5 = 12)
d - 9 liters (36 x 0.25 = 9)

So now you know how many liters of water you’re getting for what price which is

a. 2 liters for .89
b. 3 liters for 1.50
c. 12 liters for 5.25
d. 9 liters for 4.75

Now, you must divide the price by how many liters you’re getting to know how much each liter cost by itself.

a- .89 divided by 2 = .45 cents a liter
b- 1.50 divided by 3 = .50 cents a liter
c- 5.25 divided by 12 = about .44 cents a liter
d- 4.75 divided by 9 = -about .52 cents a liter

So by the information, the cheapest and best deal would be answer C because it cost the least for 1 liter (.44 cents)