UP Police Constable Exam Model Paper 2

Given series: R3L, Q9M, O15O, L21R, ?
The logic followed here is,
1st letter:

R

$\stackrel{-1}{}$ ━

Q

$\stackrel{-2}{}$━

O

$\stackrel{-3}{}$ ━

L

$\stackrel{-4}{}$ ━

H

For numbers:
3 × 1 = 3;
3 × 3 = 9;
3 × 5 = 15;
3 × 7 = 21;
3 × 9 = 27
2nd letter:
⇒ L + 1 = M; M + 2 = O; O + 3 = R; R + 4 = V
Hence, H27V will be the next term.