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

+1 vote
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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

+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

It is 281.

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In Hindi
1) बताओ वो कौन सी सब्ज़ी है जिस में ताला और चाबी दोनों आते हैं? बताओ क्या है
2) ऐसी कौन सी चीज है जो है तो तुम्हारी, पर उसे दूसरे लोग इस्तेमाल करते हैं ?
3) वो कौन सा काम है जो 1 आदमी अपनी पूरी ज़िंदगी में 1 बार करता है, पर वही काम 1 औरत रोज़ करती है? बताओ क्या?