Digits in disguise means letters or symbols are used instead of numbers (digits) in a math problem or puzzle. Each letter stands for one number from \(0\) to \(9\). The goal is to find which digit each letter represents.
 
igit.png
 
It’s like a secret code where every letter hides a number, and you need to solve the puzzle by using clues and logic.
 
How to Solve Digits in Disguise?
  • Remember each letter is one number, always the same number wherever it appears.
  • Different letters stand for different numbers.
  • Use simple math rules to guess which numbers fit.
  • Check if the sum or product is right after you guess.
Example:
 
AB×B¯69¯
 
Find the value of \(A\) and \(B\).
 
Solution:
 
It is given that \(B \times B = 9\).
 
Thus, \(B\) takes the value either \(3\) or \(7\).
 
When \(B = 3\), we have:
 
A3×3¯69¯
 
\(\Rightarrow (A \times 3)  =6 \) 
 
\(\Rightarrow 3A = 6\)
 
\(\Rightarrow A = 2\)
 
Thus, \(A = 2\) and \(B = 3\).
 
[Here the \(B=7\) case is not possible, which results in a different product value. ]