Maths Brain Teasers 126 :: Can You Solve 3 Digit Lock Puzzle?

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Hey All; @StemGeeks Mathematician;

Without further, ado, let's get to our puzzle for today:: Maths Brain Teasers 126 :: Can You Solve 3 Digit Lock Puzzle?

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Have a close look at the image given and see if you can find the correct numbers that replace the question mark.

There is logic to resolve the puzzle; try finding out the logic and it should be resolved in seconds.. Guesswork isn't going to help...

With that, I'll leave you all with the Maths Brain Teasers 126 :: Can You Solve 3 Digit Lock Puzzle? Good luck solving the puzzle...

Maths Brain Teasers 125 :: Can You Crack The CODE? - Solved with Explanation

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Let's have a look at the Step by Step instructions to Solve the Maths Brain Teasers 125 :: Can You Crack The CODE?

If you carefully look at the Image in question; You would have noticed the following pattern is being followed::

Ideally no pattern but rather we need to focus on the statement given/provided & eliminate numbers

Let's have a look at the first example::

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With this, we know 1 Number position is correct

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We now can make it that Number 2 is there in code and its position is first

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This eliminates Number 6 in the first image and now we know 2 & number 5 is in code

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By this, we sense the number 5 position is last & hence::

Finally, the answer to the puzzle and the number to crack the code is:: 205

At the same time will like to echo @serhotest detailed explanantion::

According to line 3 where all numbers ( 6-3-1) are incorrects we can eliminate 1 and 6 in first line where one number is correct and well placed, so the 2 is well placed:
2- ?- ?
According to line 2, two numbers are corrects but wrongly placed in (6-5-2) we know 6 is wrong and 2 is correct so the other correct number is 5, it can't be in first position occupied by 2, nor in second (wrong position) so it's the third:
2-?-5
According to fourth line two numbers are correct but wrongly placed (3-5-0), we know 3 is wrong so correct number is 0 and it fits in the last spot so correct code is:
2-0-5

STEM token GiveAway

I'll be again doing a giveaway of STEM tokens to the lucky random winner with the correct answer. For the last contest, which was Maths Brain Teasers 125 :: Can You Crack The CODE?.

We had just two entries and I am happy to see the engagement. At the same time, it's great to see the detailed answers provided by everyone as to how they arrived at the solution of the puzzle.. Well done guys.. Way to GO... Now the results part; both the entries provided the right answer and hence I am going to split the rewards between two of them @serhotest && @adedayoolumide

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Congratulations @serhotest && @adedayoolumide - You WIN yourself 5 STEM tokens. You should be having the rewards in your STEM Wallet Soon.

Math Quote for the Day::

Here is the motivation to solve the Maths Equation Puzzle?

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If you like my work, then please spread the Word.. that we do have the Math Brain Teasers competition here @StemGeeks platform. Reblog is much appreciated.

Best Regards

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PS:: All the Maths Brain Teasers; are made by me using the Pro Canva License Version

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Somehow stumbled here and seems fun so here goes,

First Line : 1-4-2 (one number is well placed)

  • By looking at 3rd line : 4-5-6 (nothing correct) thus we can eliminate 4 from first line
  • By looking at 4th line : 1-3-9 (one number correct but wrongly placed) note that if we accept 1 in the first line as well placed, then 4th line will have at least 1 well place number as well yet was not stated so, therefore we can eliminate 1.

Thus we have 2 as the well placed,
?-?-2, and the code is easily solved with hint from 2nd line

3-0-2

Also you made a typo with the last post final answer i think? XD

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I agree with @satorihime the answer is 3-0-2

My method:

  • On line one ( 1-4-2) we have one number well placed, as the 4 is wrong according to line three we have 2 posibilities:
    1-?-? or ?-?-2
  • According to line two, two numbers are corrects and well placed (3-0-9)
    The 0 is correct and well placed because it doesn't interact with previous possibilities, so the new posibilities are:
    1-0-9 or 3-0-2
  • On line four one number is correct but wrongly placed (1-3-9)
    So for our previous possibilities it can't be the first (1-0-9) because we would have two numbers correctly placed.
    Then only one possibility remains and we have the code:
    3-0-2

!LOLZ

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