Once you attempt the question then PrepInsta explanation will be displayed.
Here in ZBAY 1st and 4th position are in descending order and 2nd and 3rd position are also in descending order
Similarly for JRQI , OMLN, YCBX the 1st and 4th position are in descending order and 2nd and 3rd position are also in descending order
So in the given examples only DXWC satisfies this coding
Login/Signup to comment