Question :
XiuLi has $459 and YuLi has $1560.
After both of them spent equal amount of money, XiuLi has 1/4 as many
money as YuLi. So how much money has YuLi spent ?
Model Methods
Different at beginning = Different after
spent
So 3 units $1560 - $459
= $1101
1 unit $1101 /3 =
$367
YuLi spent = XiuLi spent =
$459 - $367 = $92
ANS : $92
