Earl needs to fill juice cups for his little brother's birthday party. There are 25 juice cups and each juice cup holds 12 fluid ounces. The juice comes in 1-gallon bottles. How many 1-gallon bottles of juice will Earl need to purchase? (1 quart = 32 fluid ounces, 1 gallon = 4 quarts)

1 bottle.

2 bottles

3 bottles

4 bottles

First, we need to know how many fluid ounces hold the 25 juice cups; for that, you have to multiply 25 by 12

25*12=300 fluid ounces

if 1 quart = ... 32 fluid ounces

x quarts = ... 300 fluid ounces

x = 300*1/32 = 9.375 quarts

if 1 gallon = ... 4 quarts

y gallons = ... 9.375 quarts

y = 9.375*1/4 = 2.34375 gallons

You know that 1 gallon = 1 bottle but if you order just 2-gallon bottles you remain with the rest of 0.34375. In order to fill the juice cups, you need to order 3-gallon bottles even if you remain with the rest of juice.

The right answer is C. 3 bottles

Total volume of Juice

25 * 12

300 ounces

300 ounces / 32

9.375 quart

9.375 quart / 4

2.34375 gallons

So Earl should buy at least 3 bottles