2. According to the directions on a can of froze 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 200-6 ounce servings of orange juice?
A) 25
B) 34
C) 50
D) 67
E) 100
GMAT Prep Question # 2
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Here's one approach: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 can of the concentrate are required to prepare 200 6-ounces serving of orange juice?
a)25
b)34
c)50
d)67
e)100
The first part tells that, for every 1 can of concentrate, we can make 4 cans of juice.
Let's be even more generic, for 1 volume of concentrate, we can make 4 volumes of juice.
Okay, now notice that we have a problem with the volume mismatch in the question. It involves 12-ounce cans of concentrate and 6-ounce servings.
So, let's reword the question. Instead of making 200 6-ounce servings of juice, let's make 100 12-ounce servings of juice. We're still making the SAME AMOUNT OF JUICE.
We're now asking, "How many 12-ounce cans of the concentrate are required to prepare 100 12-ounce serving of orange juice?
We can solve this question using equivalent ratios.
(volume of concentrate)/(volume of juice): 1/4 = x/100
Solve for x to get [spoiler]x=25[/spoiler]
So, the answer is A
Cheers,
Brent
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1 juice can makes 4 cans of orange juice
x cans make 100 cans of orange juice.
x/100 = 1/4
x=25 cans are required.
x cans make 100 cans of orange juice.
x/100 = 1/4
x=25 cans are required.