Cryptarithm


 
 
Concept Explanation
 

Cryptarithm

Cryptarithm:

Cryptarithms are puzzles, on various operations on numbers, in which letters take the place of digits and one has to find out which letter represents which digit. Now let us discuss some problems on addition and multiplication only. While solving cryptarithms involving addition and multiplication, we assume that each letter in a puzzle stands for just one digit  and each digit is represented by just one letter. We also assume that the first digit of a number cannot be zero. For example, thirty four will be written as 34 not as 034 or 0034.

Illustration:  Solve the cryptarithm :

overline{ON}+overline{ON}=overline{GO};;or,;;2times overline{ON}=overline{GO}.

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Sample Questions
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Question : 1

If AB7 +7AB = 98A, then what is the value of B is _________

Right Option : B
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Question : 2

         large A4

large X;;2A

   large ;;;2726

In the product shown above, find the value of A:

Right Option : C
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Explanation
Question : 3

If AB + 37 = 9A, then the value of A is   _________

Right Option : A
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Explanation
 
 
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