Question

A numeric lock has 3 digit key-hint-(6,8,2)one number is correct well placed;(6,1,4)one number is correct but wrong placed;(2,0,6) tow numbers are correct but wrong placed;(7,3,8) nothing is correct;(7,8,0)one number is correct but wrong placed...answer plz dudes...

Answer 1

The 3 digit key is :
042