We place the missing letters in:
G C E | G F H | J M K | M P L | P S O _
Fill pattern-wise
Look at each position column-wise:
1st letters:
_ , G, J, M, P
Sequence: G (7), J (10), M (13), P (16) → +3 each
So before G should be D (4)
First blank = D
2nd letters:
C, _, M, P, S
Sequence: C(3), ?, M(13), P(16), S(19)
From C → M → P → S increases regularly:
Check pattern differently:
From M → P → S = +3, +3
So backward:
M − 3 = J
Second blank = J
3rd letters:
E, F, _, L, O
E(5), F(6), ?, L(12), O(15)
Pattern: +1, +3, +3
So missing = I (9)
Third blank = I
4th letters:
, H, K, , _
H(8), K(11) = +3 pattern
So:
Before H = E (5)
After K: 14 (N), 17 (Q), 20 (T) → but must fit last blanks
So:
Fourth blank = N
5th letters:
E, H, K, N, ?
Pattern +3 → next = Q
Fifth blank = Q
Final blanks:
D J I N Q
Final Answer:
DJINQ