A certain brand of house paint must be purchased either in quarts at $12 each or in gallons at $18 each. A painter needs a 3-gallon mixture of the paint consisting of 3 parts blue and 2 parts white. What is the least amount of money needed to purchase sufficient quantities of the two colors to make the mixture? (4 quarts = 1 gallon)_怎么得出选项C？3 parts blue and 2 parts white是指比例要3:2吗出国考试答疑器_GMAT

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题目：

A certain brand of house paint must be purchased either in quarts at $12 each or in gallons at $18 each. A painter needs a 3-gallon mixture of the paint consisting of 3 parts blue and 2 parts white. What is the least amount of money needed to purchase sufficient quantities of the two colors to make the mixture?

(4 quarts = 1 gallon)

选项:

A、$54

B、$60

C、$66

D、$90

E、$144

提问：

怎么得出选项C？3 parts blue and 2 parts white是指比例要3:2吗

解答：

阅读1243

解答：徐小梅

提问：

怎么得出选项C？3 parts blue and 2 parts white是指比例要3:2吗

解答：

阅读1244

解答：徐小梅老师

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