260884 में से वह कौन सी सबसे छोटी संख्या घटाई जानी चाहिए ताकि परिणामी संख्या 18 से पूर्णतः विभाज्य हो जाए?

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?