Solve this fast and get 20 points
Answers
the answer might be 751 I am guessing
Answer : 153
Explanation :
Consider Set 4,
8, 4, 9 and The rule says Nothing is correct.
So, 8, 4, 9 aren't part of our solution.
Consider Set 5 now,
It contains 8, 9, 1
Out of these, 8, 9 are already wrong As per Set 4.
So, 1 is correct.
As the rule reads Only one number is correct and placed wrong.
From this, 1 can't be in the last place.
Observe Set 2,
It contains 3, 1, 7
Rule reads two numbers correct but in wrong spots.
We already know, 1 is correct.
From this rule, We also get 1 shouldn't be at middle. And Earlier, We got to know it shouldn't be at last.
Hence, 1 is the first digit of the code.
Now, Either 7 or 3 is correct.
Go to set 3,
It contains 7, 9, 3
9 is already proved wrong.
Rule reads correct number placed at the correct spot.
Since, First digit is 1. 7 isn't correct. And 3 which is placed at correct spot ( last place) is correct.
Roughly, Our code is ready. It is 1 _ 3
Now observe the Set 1,
It contains 7, 2, 5
7 is proved to be wrong.
Rule reads correct number at wrong spot. So, 2 can't be correct as it is in middle place.
5 is part of code and will be in middle.
Therefore, 153 is the required code. Your code is cracked