[color=#0f0f0f]In the diagram above each of the letters represents an odd single-digit prime.
- There are only 3 odd single-digit primes: 3,5,7.
- So, each letter in the diagram is represented by either a 3 or a 5 or a 7.
If each row and each column must be filled with distinct digits
- Each row has distinct digits i.e., if you take any one row, there will be no repetition of digits.
- Each column has distinct digits i.e., if you take any one column, there will be no repetition of digits.
Here is one example ->
[/color]
Observe - each row, whether you take row 1 or row 2 or row 3 - has distinct digits (each row has 3, 5, and 7 - but no repeat of any digit).
Similarly, each column, whether you take column 1 or column 2 or column 3 - has distinct digits (each column has 3, 5, and 7 - but no repeat of any of the digits).
This is actually similar to a Sudoku Grid - every row and every column has distinct digits.
Hope this helps!
---
Harsha
Rohit_842
HarshavardhanR how do you even get 9 distinct odd primes all single digit? there are only 3!!
"each row and each column must be filled with distinct digits" what am I missing?