29-Q5大家看看

nicboy

    

Q5:

    

According to a
survey, 93 percent of teenagers have used a computer to play games, 89 percent
have used a computer to write reports, and 5 percent have not used a computer
for either of these purposes.  What
percent of the teenagers in the survey have used a computer both to play games
and to write reports?

    

 

    

A.  
82%

    

B.  
87%

    

C.  
89%

    

D.  92%

    

E.  
95%

    

Answer:

skidrow

b   93+89+5-X=100