Hang Tuah wrote:

Source: GMAT Prep

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 prepare 200 6-ounce servings of orange juice?

A. 25

B. 34

C. 60

D. 67

E. 100

Someone else just posted this one.

Ok so there are 200 6 ounce servings. thus a total of 6*200 or 1200oz.

Now the ratio of Conc. Orange Juice to water is 1/3. realize that there is an unknown multiplier and we can say that x+3x=1200. or 4x=1200. Thus x=300ounces. So to figure out how many 12oz cans we need we simply divide 300 by 12. 300oz/12oz can = 25cans.

Ans A.