A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.
DAF, FED, HIB, ?
- AJMZ
- BJOY
- CLUX
- DJOZ
Solution & Step-by-step Explanation
Let's map the positional progression for each of the three letters across the triplets:
First Letter sequence:
D(4)
+2
F(6)
+2
H(8)
+2
J(10)
Second Letter sequence:
A(1)
+4
E(5)
+4
I(9)
+4
M(13)
Third Letter sequence:
F(6)
−2
E(5)
−2
B(2)
−2
Z(26)
(Note: D(4)−2=B(2) and B(2)−2=Z(26))
Combining these yields the missing triplet: JMZ.
First Letter sequence:
D(4)
+2
F(6)
+2
H(8)
+2
J(10)
Second Letter sequence:
A(1)
+4
E(5)
+4
I(9)
+4
M(13)
Third Letter sequence:
F(6)
−2
E(5)
−2
B(2)
−2
Z(26)
(Note: D(4)−2=B(2) and B(2)−2=Z(26))
Combining these yields the missing triplet: JMZ.