MAT Exam 2020 Paper

Concept:The series is made of consecutive alphabet groups. Their lengths and starting letters both follow a pattern.Explanation:The lengths are $2,3,4,5,6$ letters per term.So the missing term must contain 5 letters.Starting positions are: $\mathrm{A}=1$, $\mathrm{D}=4$, $\mathrm{H}=8$, $\mathrm{S}=19$.The differences between starting positions are $+3$, $+4$, then $+5$, $+6$.Thus, after $\mathrm{H}$ ($8$), the next start is $8+5=13$, which is $\mathrm{M}$.Taking 5 consecutive letters from $\mathrm{M}$ gives $\mathrm{MNOPQ}$.Answer:C. $\mathrm{MNOPQ}$