GRE考试

【单选题】


The percent decrease in average number of production hours per widget from 1990 to 2000 was approximatelyA．44%
B．36%
C．34%
D．32%
E．27%

网考网参考答案：A
网考网解析：
According to the graphs, from 1990 to 2000, the average number of production hours per widget decreased from 9 to 5. To calculate the percent decrease, divide the difference between the starting value and ending value (9-5) by the starting value: [*]=0.44, which is equivalent to 44 %. document.getElementById("warp").style.display="none"; document.getElementById("content").style.display="block"; 查看试题解析出处>>