GWD数学题（3）

husky

If the average of the assessed values of x houses is 212000,y other houses is 194000,what's the average of the assessed values of the(x+y) houses?
1. X+Y=36      2.X=2Y
选项大家都知道，答案是两个在一起才充足。

caicainiao

answer is B，OA is wrong