According to the directions on a can of frozen orange juice concentrate, 1 can of concentrate is to be mixed with 3 cans of water to make orange juice. How many 12 ounce cans of concentrate are required to prepare 120 six-ounce servings of orange juice?  Choose the correct option.
A) 12	B) 15	C) 18	D) 21	E) 24
1 X 12 ounce can of concentrate + 3 X 12 ounce cans of water = 48 ounces of the mixture.   48 ounces of mixture gives  (48 / 6 )= 
<gadget id="calculator"> (48 / 6 )</gadget>
<output>8</output>
8 servings.   Thus 1 x 12 ounce can of concentrate is used to produce 8 servings of the mixture.   To make 120 servings of the mixture, we need 120 / 8= 
<gadget id="calculator">120 / 8</gadget>
<output>15</output>
15 cans of the concentrate.   The answer is 15.
<result>B</result>
According to the directions on a can of frozen orange juice concentrate, 1 can of concentrate is to be mixed with 3 cans of water to make orange juice. How many 12 ounce cans of concentrate are required to prepare 120 six-ounce servings of orange juice?