Question

What is the missing digit which makes the number $12$_$64$ exactly divisible by $8$?

• A. $0$
• B. $1$
• C. $5$
• D. $3$

Answer 1

Answer: (A)

$0$

We know the divisibility rule for $8$:
If the last three digits are divisible by $8$ or last three digits of the given number are zeros, then the number is divisible by $8$.
Here, $12064$ is divisible by $8$ because the last three digits are divisible by $8$.

So, option A is correct.