Question

1.I am equal to 3 times the sum of my digits. Tell what number am I?

Answer 1

27

Explanation:

let the number be 10x+y

so 10x+y=3(x+y)

7x=2,y=7

then 27=3(2+7)=27

Answer 2

Explaination:
Let the number be 10x＋y (x is the first digit)
So 10x＋y=3(x＋y)
7x=2y
If x=2, y=7
Then 27=3(2＋7) = 27

Solution:
The number is 27.