The diagram shows a security lock.You have to enter the correct code to open the lock. The correct code is B3Dan does not know the code.He enters at random one of the letters.He then enters at random one of the numbers.Work out the probability that Dan enters the correct code.

A letter lock consists of 4 rings, each ring contains 9 non-zero digits. This lock can be opened by setting a 4 digit code with the proper combination of each of the 4 rings Maximum how many codes can be formed to open the lock?

Mr. Jason has captured your friend and has a collar around his neck. He has locked the collar with a given “locking key". Now it can only be opened with an “unlocking key”. Your friend sees the locking key but he does not know how to find the unlocking key. You can calculate the unlocking key if you have the locking key, because the unlocking key will be the smallest (in magnitude) permutation of the digits of the locking key and will never start with zero. Help your friend write an algorithm that outputs the unlocking key by taking key as an input  InputThe input to the function/method consists of an argument lockingkey, an integer representing the locking key. Output  Return an integer representing the unlocking key Constraints  -10^7 <= lockingkeys <= 10^7   Note  A possible answer exists for each input.TestCase 1:Input:310423501Expected Output:100123345TestCase 2:Input:918Expected Output:189 SAMPLE INPUT 620152SAMPLE OUTPUT 102256Time Limit: 5.0 sec(s) for each input file.Memory Limit: 256 MBSource Limit: 1024 KBMarking Scheme: Score is assigned if any testcase passes.Allowed Languages: Bash, C, C++14, Clojure, C#, D, Erlang, F#, Go, Groovy, Haskell, Java 8, JavaScript(Node.js), Julia, Kotlin, Lisp (SBCL), Lua, Objective-C, OCaml, Octave, Pascal, Perl, PHP, Python, Python 3, R(RScript), Racket, Ruby, Rust, Scala, Swift, TypeScript, Visual Basic

A numerical lock can be opened using any possible combination of these five digits 0, 1, 0, 3 and 2 (example 20031). John used all possible incorrect combinations on the 5-digit lock before finally opening the lock at the next attempt. How many total attempts did he make? The digits available are 0-5 in lock ​

A Dubai based gangster Chhota Vakil is in Switzerland. He wants to rob a bank there, whose locker code according to his information is an odd number between 50 and 450. He also knows that the numbers are from the set: 0, 1, 2, 3, 4, 5}. How many maximum trials he has to take to unlock the locker?

A thief steals an ATM card and must randomly guess the correct five-digit pin code from a 6-key keypad. Repetition of digits is allowed.The number of possible codes is (Type an integer or fraction. Simplify your answer.)The probability that the correct code is given on the first try is (Type an integer or fraction. Simplify your answer.)