269.5÷(10+1)
=269.5÷11
=24.5
269.5-24.5
=245
甲24.5,乙245
dfgdfgdfsg
甲+乙=269.5
10甲=乙
甲=24.5
乙=245
设甲为X,乙为Y
x+y=269.5
10x=y
11X=269.5
X=24.5
Y=245
11x=269.5
x=24.5
y=245