Question

This lock has a 3 digit code can you crack it using only these hints 291 245 463 578 569

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Answer 1

Answer:

394 is the answer.

Step-by-step explanation:

From first and second statement we can conclude 2 will not be there from forth statement we can conclude that 5,7,8 also not there.

From third and second statement we can conclude 4th will be on last position

From third and fifth statement we can conclude 6 is also not correct and 9 is the correct and it is on second place.

From the third statement we can conclude 3 is the correct and it is on 3rd place.

Answer 2

The 3 digit code is 394

Step-by-step explanation:  

• From 1,2 & 4 statement we know that one number is 4.

Because: One number is correct and well placed: 2 9 1   (correct no. is 9 and 2nd position)

One number is correct but wrong place: 2 4 5(2 & 5 is not correct, so correct no. is 4, but the position of 4 is not 2nd)

Nothing is correct: 5 7 8  

• From 2&3 statement we know the position of 4 is 3rd position.

Because: One number is correct but wrong place: 2 4 5   (the position of 4 is not 2nd)

Two numbers are correct but wrong places: 4 6 3   (the position of 4 is not 1st)

• From 1 statement we know the another one number is 9. and the position of 9 is 2nd position.

Because: One number is correct and well placed: 2 9 1   (9 is the correct number and in 2nd position)

• From 3 & 4 statement we know the another one number is 3.

Because: Two numbers are correct but wrong places: 4 6 3  ( one correct number is 4, and another one is 3)

Nothing is correct: 5 7 8 ( 3 is not here)

So the 3 digit code is 394.