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 Covert Quantity II (Posted on 2013-08-20)
```+---------+-------+
| 1 2 5 9 | R     |
+---------+-------+
| 1 3 8 9 | R B   |
+---------+-------+
| 1 3 5 7 | B B   |
+---------+-------+
| 4 3 9 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: 2.6667 (3 votes)

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 answer - spoiler | Comment 1 of 3
ans: 8327
I leave the explanation to others.

 Posted by Ady TZIDON on 2013-08-20 13:28:12

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