再问， 刚刚题目表述错误， 数学题

xiaohuai

x,y are positive intergers, is xy a mulitple of 8?

1. the greatest common divisor of x and y is 10

2 the least common mulitple of x and y is 100 

还有1道。。  if 500 is multiple of 100 that is closed to x and 400 is multiple of 100 that is closed to y, which multiple of 100 is closed to x+y

1.x<500

2y<400

luki

2、E

就是说，500是100倍数中最接近X的，450<X<550,同理可知350<Y<450

条件一：450<x<500,若，X=480而Y=400，就是接近900，若X=460，Y=360就是接近800

条件二：350<Y<400,if X=500,y=360,close to 900,if x=460,y=360,close to 800

if (1)+(2),450<x<500 and 350<Y<400,then if x=470,y=390,close to 900,if x=460,y=360,close to 800,

so E

xiaohuai

谢谢你细心有详细的解答！