Question

one of the two digit of a two digit number is three times the other is it if you interchanging the digit of the these two digit number and add the resulting number to the original number you get 88 what is the original number

Answer 1

let the unit digit be x
And tens digit =3x
Original number=(10×3x)+x
=30x+x
=31x
Therefore after interchanging=10×x+3x
=13x
According to the statement=13x+31x=88
=44x=88
x=88÷44
X=2
original number=10×3x+x=30x+x=30×2+2
=62