Question

the digit in the ones palace of a two digit number is twice the digit at the tens Palace write the number

Answer 1

Let unit's digit be x and ten's digit be y

We are given,   x = 2y

So, Number = 10y +x = 10y + 2y = 12y
so, Number can be 12,24, etc

There is not exactly one answer of this question becoz there is only one equation 

Answer 2

Answer:

Let's unit the digit be x and ten's used be y

We are given,x=2y

So number=10y+x=10y+2y=12y

So,number can be 12,24,etc

There is not exactly one answer of this question....

Hope it helps!