GWD2-Q32

notidgen

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.

why the answer is B? 俺选的C~

gillcx

同样,我也觉得是C啊...

fly_holly

[attachimg]67185[/attachimg]
条件二单独满足题目，所以B

notidgen

哦，原来如此，谢拉～