AMC8 1990

AMC8 1990 · Q10

AMC8 1990 · Q10. It mainly tests Logic puzzles, Patterns & sequences (misc).

On this monthly calendar, the date behind one of the letters is added to the date behind C. If this sum equals the sum of the dates behind A and B, then the letter is

在这个月历上，其中一个字母后面的日期加上 C 后面的日期，其和等于 A 和 B 后面日期的和，则该字母是

(A) P P

(B) Q Q

(D) S S

(E) T T

Answer

Correct choice: (A)

正确答案：（A）

Solution

Since the date behind C is one less than that behind A, the date behind the desired letter must be one more than that behind B. This date is behind P.

由于 C 后面的日期比 A 后面的少 1，因此所求字母后面的日期必须比 B 后面的多 1。这个日期在 P 后面。

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