GWD-22-32

mchen224

Q32:

 

	Number Studying	Number Not	Total
	Biology	Studying Biology
Number			18
of Boys
Number
of Girls
Total	26

 

The table above shows the number of students in a certain high school class who are boys and the number of students in the class who are studying biology.  What is the total number of students in the class?

(1)     Of the boys in the class, 15 are studying biology.

(2)   The number of girls in the class is twice the number of students in the class who are not studying biology.

                  

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

这题为什么选B？ 我选的A啊。

songyang0121

26+x=18+2x