Question

24.If the unit's and ten's digits of a two digit number are y and 1
x,then the number is​

Answer 1

Answer:

Let the ones's digit =x

Therefore, tens's digit =3x

Original number =10(3x)+x=31x

Sum of number + unit digit =32

⇒31x+x=32

⇒x=1

Tens digit will be 3x=3.

Therefore, the number is 31.