1 |
5 |
6 |
5 |
因为六(1)男生是女生的(1+
1 |
4 |
5 |
4 |
5 |
4+5 |
5 |
9 |
5 |
9 |
6 |
5 |
2 |
3 |
女生占六(1)总数的
4 |
4+5 |
4 |
9 |
4 |
9 |
6 |
5 |
8 |
15 |
因为六(2)女生占男生的(1-
1 |
8 |
7 |
8 |
7 |
7+8 |
7 |
15 |
8 |
7+8 |
8 |
15 |
两个班合起来男生与女生的人数比:(
2 |
3 |
8 |
15 |
8 |
15 |
7 |
15 |
=
6 |
5 |
=6:5;
答:男、女生的人数比是6:5.
1 |
5 |
1 |
4 |
1 |
8 |
1 |
5 |
6 |
5 |
1 |
4 |
5 |
4 |
5 |
4+5 |
5 |
9 |
5 |
9 |
6 |
5 |
2 |
3 |
4 |
4+5 |
4 |
9 |
4 |
9 |
6 |
5 |
8 |
15 |
1 |
8 |
7 |
8 |
7 |
7+8 |
7 |
15 |
8 |
7+8 |
8 |
15 |
2 |
3 |
8 |
15 |
8 |
15 |
7 |
15 |
6 |
5 |