10100 में कौन सी सबसे छोटी संख्या जोड़ी जानी चाहिए, ताकि प्राप्त योग 49 से पूर्णतः विभाज्या हो?

If P is a digit such that 45P82 is divisible by 11, then P is equal to:

What value must be assigned to A so that the 8-digit number 493A9132 is divisible by 9?

What is the maximum value that must be assigned to A so that the 8-digit number 588A9792 is divisible by 4?