1) Which of the following types does the Cryptarithmetic problem belong to?
        
            - Encryption Problem
  
            - Constraint Satisfactory Problem
  
            - Number problem
  
            - All of the above
 
        
        
        
            Correct answer: 4
All of the above
            The Cryptarithmetic problem belongs to every type of mentioned problem: Encryption problem, Constraint satisfactory problem, as well as Number Problem.
         
    
   
    
        
        2) Which of the following mentioned properties are valid for a Cryptarithmetic problem?
        
            - A number 0-9 is assigned to a particular alphabet.
 
            - Each different alphabet has a unique number.
 
            - All the same alphabets have the same numbers.
 
            - The numbers should satisfy all the operations that any normal number does.
 
        
        Options:
        
        - Only iv.
 
        - All i., ii., iii.  and iv.
 
        - ii. and iv.
 
        - None of the above
 
        
        
        
            Correct answer: 2
All i., ii., iii.  and iv.
            All the mentioned properties are valid properties for a Cryptarithmetic problem.
         
    
      
   
    
        
        3) Which of the mentioned point are not valid with respect to a Cryptarithmetic problem?
        
            - Constraints should be taken care of while solving the problem
 
            - The text is converted from readable format to non-readable format
 
            - If numbers are not sufficient, we can use special symbols like $#@% to encrypt the text
 
            - None of the above
 
        
        
        
            Correct answer: 3
If numbers are not sufficient, we can use special symbols like $#@% to encrypt the text
            There is no rule in the Cryptarithmetic problems regarding using the special numbers for encryption. We must encrypt the text using the numbers 0-9. Hence, this encryption method is limited to small length texts only.
         
    
   
    
        
        4) Consider the following statement:
"The Cryptarithmetic problem in Artificial Intelligence is a type of encryption problem in which the written message in an alphabetical form which is easily readable and understandable is converted into a numeric form which is neither easily readable nor understandable."
By reading the above statement, what are the places where this technique can be applied?
        
            - To share passwords
 
            - To encode number plates of vehicles
 
            - To encode their names by students while filling the answer sheet
 
            - None of the above
 
        
        
        
            Correct answer: 1
To share passwords
            The Cryptarithmetic problem is an efficient way to share passwords. However, the other things mentioned do not require any encryption, so applying this technique there would be a waste of time.
         
    
   
 
    
        
        5) Provide the answer for the following Cryptarithmetic problem:
"SEND MORE MONEY"
        
            - S=12;  E=5;  N=6;  D=8;  M=1;  O=0;  R=8;  Y=2
 
            - S=9;  E=5;  N=6;  D=7;  M=1;  O=0;  R=8;  Y=2
 
            - S=5;  E=5;  N=6;  D=7;  M=1;  O=0;  R=8;  Y=2
 
            - S=9;  E=5;  N=9;  D=7;  M=1;  O=0;  R=8;  Y=2
 
        
        
        
            Correct answer: 2
S=9;  E=5;  N=6;  D=7;  M=1;  O=0;  R=8;  Y=2
            Cryptarithmetic problems should be solved, but here we can find the answer to this question through the options itself.
    The first option has S=12 which exceeds 0-9 range.
    The third option has the same value for S and E
    The fourth option also has the same values for S and N
    Therefore, the correct option is b.