AMC8 2002

AMC8 2002 · Q9

AMC8 2002 · Q9. It mainly tests Arithmetic misc.

His South American stamps issued before the '70s cost him

他在70年代之前发行的南美邮票花费了他

(A) $0.40 $0.40

(B) $1.06 $1.06

(D) $2.38 $2.38

(E) $2.64 $2.64

Answer

Correct choice: (B)

正确答案：（B）

Solution

His South American stamps issued before the '70s include $4 + 7 = 11$ from Brazil that cost $11 \times \$0.06 = \$0.66$ and $6 + 4 = 10$ from Peru that cost $10 \times \$0.04 = \$0.40$. Their total cost is $0.66 + 0.40 = \$1.06$.

他在70年代之前发行的南美邮票包括巴西的 $4 + 7 = 11$ 张，花费 $11 \times \$0.06 = \$0.66$，秘鲁的 $6 + 4 = 10$ 张，花费 $10 \times \$0.04 = \$0.40$。总花费是 $0.66 + 0.40 = \$1.06$。

Topics

AR.015 Arithmetic misc