SSC CGL Model Paper 20

Concept:Each term follows a fixed letter-position pattern, and the first letter increases by a constant gap.Explanation:In $\mathrm{DEC}$, $\mathrm{HIG}$, $\mathrm{LMK}$, $\mathrm{PQO}$, $\mathrm{TUS}$, the first letters are $D=4$, $H=8$, $L=12$, $P=16$, $T=20$.They increase by $+4$ each time.So the next first letter is $20+4=24$, i.e. $\mathrm{X}$.Inside each term, the pattern is: first letter, first $+1$, first $-1$.Thus after $\mathrm{X}$, the letters are $\mathrm{Y}$ and $\mathrm{W}$.So the next term is $\mathrm{XYW}$.Answer:The correct alternative is $\mathrm{XYW}$ (Option C).