Question

If the number $12x453$ is divisible by $9$, then digit at the place of $x$ will be

• A. $1$
• B. $2$
• C. $3$
• D. $4$

Answer 1

The correct option is C $3$

A number is divisible by 9, when sum of its digit is divisible by 9.
Now the sum of the digit of $12x453$
$=1+2+x+4+5+3=15+x$
The number closest to $15$ and divisible by $9$ is $18$.

Hence, 3 needs to be added to $15$.
$\therefore x=3$

So, option C is correct.