In a certain code BROADEN is written as NQABOFE how is DESKTOP written in that code ?
The word BROADEN is divided into three pars : BRO , A , DEN
I : BRO - NQA
The diagonally opposite element is substituted by its immediate preceding alphabet in the English alphabetical series.
=> B is substituted by A at its diagonally opposite position. Similarly, R is substituted by Q at its diagonally opposite position and O by N.
II : A - B
The middle letter is substituted by its immediate following alphabet in the English alphabetical series.
III : DEN - OFE
The diagonally opposite element is substituted by its immediate following alphabet in the English alphabetical series.
=> D is substituted by E at its diagonally opposite position. Similarly, E is substituted by F at its diagonally opposite position and N by O.
Thus, code for DESKTOP :
DES - RDC
K - L
TOP - QPU
$$\therefore$$ DESKTOP = RDCLQPU
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