the sum of the digit of a 2-digit number is 11 . the number obtained by interchanging the digits exceeds the original number by 27 . Find the nu
mber ....
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Step-by-step explanation:
let the no be 10x+y
x+y =11 ---A
10y+x-10x-y=9(y-x)
9(y-x)= 27
y-x =3 ----B
A+B
2y=14
y=7
A-B
2x=8
x=4
no. is 47
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