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Tanya's puzzle (Posted on 2016-05-10) Difficulty: 3 of 5
On April 16, 2015, Tanya Khovanova wrote in her blog:

<begin>
Here is my new logic puzzle.
I thought of a positive integer that is below 100 and is divisible by 7. In addition to the public knowledge above, I privately tell the units digit of my number to Alice and the tens digit to Bob. Alice and Bob are very logical people, but their conversation might seem strange:

Alice: You do not know Tanya’s number.
Bob: I know Tanya’s number.

What is my number?
<end>

Please comment.

No Solution Yet Submitted by Ady TZIDON    
Rating: 4.0000 (1 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
Question re: Not so masked | Comment 2 of 10 |
(In reply to Not so masked by armando)

Your answer,  not entirely wrong, should be expanded. 

Is there an answer to Tanya's question?

Only one possibility or more?

Are A and B very logical people?



  Posted by Ady TZIDON on 2016-05-10 13:39:37
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