AMC8 1996

AMC8 1996 · Q18

AMC8 1996 · Q18. It mainly tests Percent, Arithmetic misc.

Ana's monthly salary was $2000 in May. In June she received a 20% raise. In July she received a 20% pay cut. After the two changes in June and July, Ana's monthly salary was

Ana 五月份的月薪是 2000 美元。六月份她涨薪 20%。七月份她减薪 20%。经过六月和七月的两次变化后，Ana 的月薪是

(A) $1920 $1920

(B) $1980 $1980

(D) $2020 $2020

(E) $2040 $2040

Answer

Correct choice: (A)

正确答案：（A）

Solution

Answer (A): After the first change, Ana's salary was $\$2000 + 0.20(\$2000) = \$2400$. After the second change, Ana's salary was $\$2400 - 0.20(\$2400) = \$1920$.

答案（A）：第一次变化后，Ana 的工资为 $\$2000 + 0.20(\$2000) = \$2400$。第二次变化后，Ana 的工资为 $\$2400 - 0.20(\$2400) = \$1920$。

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