Question Text
Question 1 :
$\stackrel{\underline{\begin{matrix}&8&A&B&C\\-&A&B&C&5\end{matrix}}}{\underline{\ \begin{matrix}&D&4&8&8\end{matrix}}}$ , find the value of A, B, C and D.
Question 2 :
If the sum of digits of a number is divisible by three, then the number is always divisible by
Question 4 :
If $abc$ is a three digit number, then the number $abc-a-b-c$ is divisible by
