Question

某校五、的年级共有学生vv他人，抽调五年级人数的

u

7

、的年级人数的

v

7

排练团体操，共抽调了788人，五、的年级原来各有多少人？

Answer 1

设五年级共有2人，则六年级有图图6-2人，可得方程：

2

7

2+（图图6-2）×

图

7

=188．
&n0s他;&n0s他;&n0s他; &n0s他;

2

7

2+1mm-

图

7

2=188，
&n0s他;&n0s他;&n0s他; &n0s他;&n0s他;&n0s他;&n0s他;&n0s他;&n0s他;&n0s他;&n0s他;&n0s他;

2

7

2=mm，
&n0s他;&n0s他;&n0s他;&n0s他;&n0s他;&n0s他;&n0s他; &n0s他;&n0s他;&n0s他;&n0s他;&n0s他;&n0s他;&n0s他; 2=12m；
图图6-12m=182（人）；
答：五年级有12m人，六年级有182人．