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Covert Quantity III (Posted on 2013-09-23) Difficulty: 3 of 5
+---------+-------+
| 6 2 5 3 | R     |       
+---------+-------+       
| 8 1 4 7 | R R   |     
+---------+-------+        
| 2 5 7 1 | B     |        
+---------+-------+     
| 3 6 0 9 | R R   |        
+---------+-------+ 
| 9 6 8 7 | B B   |        
+---------+-------+
Each of the rows in the table given above indicates an attempt to find out the secret number. Each try has, in the column to the right, the letters R and B.

Each R indicates that this number has one digit in common with the secret number, but in a different position.

Each B indicates that this number has one digit in common with the secret number in the same position.

Determine the secret number.

See The Solution Submitted by K Sengupta    
Rating: 2.0000 (1 votes)

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Solution Comment 2 of 2 |

7 is not a part of number considering evaluation of 8147 and 9687. 6 is not a possibility due to 3609 and 9687. 9, 8 are definite and other numbers are 1/4 and 0/3. From 6253 and 2571 evaluation 3 and 1 are confirmed. So the numbers are 9 8 3 and 1 and correct code is 9381.


  Posted by Salil on 2013-09-26 23:43:04
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