AMC8 1998

AMC8 1998 · Q11

AMC8 1998 · Q11. It mainly tests Logic puzzles.

Harry has 3 sisters and 5 brothers. His sister Harriet has S sisters and B brothers. What is the product of S and B?

Harry 有 3 个姐妹和 5 个兄弟。他的姐姐 Harriet 有 S 个姐妹和 B 个兄弟。S 和 B 的乘积是多少？

(A) 8 8

(B) 10 10

(D) 15 15

(E) 18 18

Answer

Correct choice: (C)

正确答案：（C）

Solution

Harry has 3 sisters and 5 brothers, so there are 3 girls and 6 boys total. Harriet has 2 sisters and 6 brothers. $2 \times 6 = 12$.

Harry 有 3 个姐妹和 5 个兄弟，所以总共有 3 个女孩和 6 个男孩。Harriet 有 2 个姐妹和 6 个兄弟。$2 \times 6 = 12$。

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