0
Sum of digits x+y=8
Two digit no assume as 10x+y
It is given that
10x+y+18=10y+x
9x-9y+18=0
x-y=-18/9
x-y= -2
Equate both
x+y-8=x-y+2
2y=10
y= 5
Substitute this y in x+y
x+5=8
x=3
So 35 is original two digit no
Reversed new no is 53
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