AMC 8 1992 Problem 6

AMC8 1992 年第 6 题

表达式与运算★★☆☆☆

Suppose that means a+b-c . For example, is 5+4-6 = 3 . Then the sum is

设

a\triangle b\triangle c

表示 a+b-c。例如

5\triangle 4\triangle 6

是 5+4-6 = 3。则

8\triangle 5\triangle 6

与

2\triangle 7\triangle 3

的和是

正确答案 · Correct Answer

解析 · Solution

Solution 1

The first triangle represents 1+3-4 = 0, and the 2nd triangle represents 2+5-6 = 1

Since we have to add the 2 triangles together, the final answer is 1, which is

\text{D}

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