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Can you find the 3 digit key for the number lock ?

+1 vote
729 views

A Number Lock has a 3-Digit Key
Hints :
6 3 1 - One number is correct and well placed.
7 3 0 - Nothing is correct.
1 0 2 - Two numbers are correct but wrongly placed.
6 7 8 - One number is correct but wrongly placed.
0 8 7 - One number is correct and well placed.

Can you find the 3 digit key for the number lock ?

posted Feb 1, 2018 by Upma

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2 Answers

+1 vote

6 3 1 - One number is correct and well placed.
7 3 0 - Nothing is correct.
1 0 2 - Two numbers are correct but wrongly placed.
6 7 8 - One number is correct but wrongly placed.
0 8 7 - One number is correct and well placed.

Can you find the 3 digit key for the number lock?

From 7 3 0 - Nothing is correct and 0 8 7 - One number is correct and well placed, it is certain that the digit 8 is one of the 3 digit key and is the second digit.
1 0 2 - Two numbers are correct but wrongly placed, we already know that zero is not one of the digits. Therefore the first digit is 2 and the last digit is 1.

The key is then 281

answer Feb 2, 2018 by Ben Tangatakno
0 votes

It is 281.

answer Feb 2, 2018 by Tejas Naik



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