AMC 8 2007 Problem 17

AMC8 2007 年第 17

百分比★★★☆☆
A mixture of 30 liters of paint is 25% red tint, 30% yellow tint and 45% water. Five liters of yellow tint are added to the original mixture. What is the percent of yellow tint in the new mixture?
一种 30 升的油漆混合物是由 25%的红色颜料,30%的黄色颜料和 45%的水组成。向原来混合物中再加入 5 升黄色颜料,那么新的混合物中黄色颜科所占的百分比是多少?
  1. A.25
  2. B.35
  3. C.40
  4. D.45
  5. E.50

正确答案 · Correct Answer

C

解析 · Solution

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