According to surveys at a company, 20 percent of the employees owned cell phones

游客2024-01-12  16

问题 According to surveys at a company, 20 percent of the employees owned cell phones in 1994, and 60 percent of the employees owned cell phones in 1998. From 1994 to 1998, what was the percent increase in the fraction of employees who owned cell phones?

选项 A、3%
B、20%
C、30%
D、200%
E、300%

答案 D

解析 From 1994 to 1998, the percent of employees who owned cell phones increased from 20% to 60%. Thus the percent increase in the fraction of employees who owned cell phones was(100%), or 200%. The correct answer is Choice D.
This explanation uses the following strategy.
Strategy 1: Translate from Words to an Arithmetic or Algebraic Representation
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