sreenunna wrote: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 the concentrate are required to prepate 200 6-ounce servings of orange juice?
A) 25
B) 34
C) 50
D) 67
E) 100
Official Answer is revealed later and the question is from GMAT official source
Total = 200 6-ounce servings = 200*6 = 1200 ounces.
Since each can = 12 ounces, the total = 1200/12 = 100 cans.
In these 100 cans of mixture, since concentrate:water = 1:3 and 1+3=4, concentrate/total = 1/4.
Thus, in the 100 cans of mixture, the number of cans of concentrate = (1/4)100 = 25.
The correct answer is
A.
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