Braingle Lite



Guess My House

Category:Logic
Submitted By:dalfamnest
Fun:*** (2.92)
Difficulty:** (1.35)



Mac's new house number has three digits. When she challenged her friends to guess it, they tried: 135, 780, 785, and 732.

"That's amazing," Mac said. "You've each guessed exactly one digit correctly and in its right place!"

What is Mac's house number?

Show Hint Show Answer



Comments on this teaser


Posted by Marple09/03/12
Excellent! It made me think very hard! :D

Posted by kidkilowatt09/05/12
Not extraordinarily difficult, but very engaging due to the casual, fun narrative!

Posted by BeanSC09/07/12
Very well done, creative! :D

Posted by dalfamnest09/07/12
Thanks. It's based on the old "Mastermind" logic game - which I stopped playing in early married life when my wife always beat me! :wink: It's fun to write a little storyline to go with the logic. :D :D

Posted by ImConfused09/14/12
As my name goes, I'm quite confused. Do the second and third guess share the second digit? or else, what prevents the last digit from being from the 2nd guess instead of the last?

Posted by dalfamnest09/15/12
Hi ImConfused! Yes, the second and third guesses both had the same digit correct. That would have to be the case, as there are only three digits and four people guessing! :D Hope you enjoyed it, though!

Posted by PYTHON10/03/12
Cool, I liked it!

Posted by Jeppydog11/03/12
GREAT PUZZLE! Elegant! And a lot of fun. Thanks!

Posted by HABS293311/03/12
Though easy, very enjoyable.

Posted by Jekyll11/03/12
How can four people each get only one digit right of a three-digit number?

Posted by cutebug11/03/12
I thought it was enjoyable, although very easy. :D :D

Posted by dalfamnest11/03/12
At least two of them must have guessed the same digit correctly ... which is part of the logic required to solve it! :o :o

Posted by corcon11/03/12
Mind...exploding... :o

Posted by FatHead11/03/12
Not bad, but a little too easy. I just took a random guess based on the clues, with the first possibility for the hundreds, the next possibility for the tens, and the only remaining possibility for the ones. And it checked! :lol:

Posted by thecatladycac11/03/12
Fairly easy - but it is nice having a little brain stimulation, but also having the satisfaction of solving fairly quickly! I enjoyed your teaser! :D :D

Posted by iggy3911/03/12
never was any good at this kind of teaser. :-? :roll: :( :o

Posted by auntiesis11/04/12
Great teaser even though it was a little on the easy side. The 3 sevens made it easy to get the first number. After that it was a piece of cake. :D :D

Posted by trewq02/21/13
great job! at first, it seemed impossible, but after reading it a couple times I got it! (I did write it down though :P )

Posted by DarthXenon02/26/13
Here's how I found out (and it probably should be the explanation in the answer, as it may be unclear): There are four guesses, which means that one of the digits was repeated twice. The first digit is 1 since 7 was repeated three times, eliminating the first guess. The second digit is 8 since it was repeated twice in the second and third guesses. By process of elimination, 2 is the third digit, which is in the fourth guess.

Posted by Tpopfunstar07/01/13
I got it right! It wasn't very difficult, but still fun :D

Posted by Zykezex01/05/14
Great one! :D




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