Which letter cluster should come next in the following series? ADGJ, EEHK, IFIL, ?
Show answer & explanation
Correct answer: A
Explanation
Series: ADGJ, EEHK, IFIL, ?
examine the sequence letter by letter.
First letters:
A →E→ I
Positions in alphabet: A(1), E(5), I(9)
Pattern: +4 each time.
Next: I(9) + 4 = M(13)
Second letters:
D → E→F
Positions: D(4), E(5), F(6)
Pattern: +1 each time.
Next: F(6) + 1 = G(7)
Third letters:
G → H→ I
Positions: G(7), H(8), I(9)
Pattern: +1 each time.
Next: I(9) + 1 = J(10)
Fourth letters:
J → K → L
Positions: J(10), K(11), L(12)
Pattern: +1 each time.
Next: L(12) + 1 = M(13)
So, the missing term is MGJM
Hence, the correct answer is option (1).