GWD5.一道数学题```请教,很困惑!~

罗杰Liu

Q18:

If the symbol ▼ represents either addition, subtraction, multiplication, or division, what is the value of 6 ▼ 2?

(1)     10 ▼ 5 = 2

(2)     4 ▼ 2 = 2

                  

A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.

B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.

C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.

D. EACH statement ALONE is sufficient.

E. Statements (1) and (2) TOGETHER are NOT sufficient.

Answer: EA

罗杰Liu

对,呵呵``原来如此啊,糊涂了```

miaoyin_tx

没错，应该是A。

分别把四种运算代进去(1)只有一种可能:division(2)有两种可能：subtraction和

division

诡异儿

A

认真理解下“represents either addition, subtraction, multiplication, or

division”就明白了。第一个条件可以确认符号具体是哪一个。

sinorachels

应该选A吧，望牛人出来解答