SSC CGL Model Paper 13

Concept:Each letter is replaced by its alphabet position, then the positions are written in reverse order.Explanation:For TOP: $T=20$, $O=15$, $P=16$.Reverse order gives $P,O,T$.So the code is $16\ 15\ 20 = 161520$.For LOCK: $L=12$, $O=15$, $C=3$, $K=11$.Reverse order gives $K,C,O,L$.So the code is $11\ 3\ 15\ 12 = 1131512$.Now for SHIFT: $S=19$, $H=8$, $I=9$, $F=6$, $T=20$.Reverse order gives $T,F,I,H,S$.Their positions are $20,6,9,8,19$.Concatenating them gives $2069819$.Answer:SHIFT is coded as $2069819$, which is option A.