1.1/5*100+12/15*100
2.2/5*100+3/5*100
3.3/5*100+2/5*100
4.4/5*100+1/5*100
=100
5.1/99*0.01+98/99*0.01
6.2/99*0.01+97/99*0.01
7.3/99*0.01+96/99*0.01
8.4/99*0.01+95/99*0.01
9.5/99*0.01+94/99*0.01
10.6/99*0.01+93/99*0.01
对不起,我只有10道