Question

甲、乙两仓库共有粮食480千克,把甲仓库的粮食运给乙仓库30千克,甲仓库的粮食数量正好是乙仓库的3倍.

Answer 1

甲仓库 X 乙仓库 Y

X+Y=480

(X-30)/(Y+30)=3

Y=480-X

(X-30)/(480-X+30)=3

X=390 Y=90