一批产品经检验,合格的有495件,不合格的有5件,合格率是( ) A.95% B.95.5% C.99% D.99.5%
问题描述:
一批产品经检验,合格的有495件,不合格的有5件,合格率是( )
A. 95%
B. 95.5%
C. 99%
D. 99.5%
答
×100%=99%;495 495+5
故选:C.