Debbie needs to fill juice-cups for her little brother's birthday party. There are 20 juice-cups and each juice-cup holds 10 fluid ounces. The juice comes in 1-gallon bottles. How many 1-gallon bottles of juice will Debbie need to purchase? (1 quart = 32 fluid ounces, 1 gallon = 4 quarts)

Answer :

katrinaxx
Debbie will need to buy 2 gallons of juice.
taskmasters
Number of juice cups mentioned in question = 20
Quantity of juice that each juice cup can hold = 10 fluid ounces
Quantity of fluid ounces that
20 juice cups require = 20 * 10 fluid ounces
                                  = 200 fluid ounces.
Now
32 fluid ounces = 1 quart
Then
200 fluid ounces = 200/32 quart
                           = 6.25 quart
Again
4 quart = 1 gallon
So
6.25 quart = 6.25/4 gallon
                 = 1.56 gallon
So we see that 1.56 gallon of juice is required by Debbie. As the juice comes in 1 gallon bottles, Debbie needs to order 2 bottles of juice.

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