prep1-96

nyc_cfas

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)  50

(D)  67

(E)  100

 
在讨论区没找到，答案是A，请大家给做一下，谢谢。

lixinli

题意为浓缩果汁和水的比例=1 can : 3 can, 问200份6-ounce的果汁饮料需要多

少12ounce为1can的浓缩果汁？

concentrate : orange juice= 1 can: 4 can

设需12-ounce的concentrate为X
1/4=X/200 得X为50 cans（12ounce/can）

题目是问6-ounce的果汁饮料，所以：
50/2=25 cans