[ This test belongs to Paid Members of KNOWLEDGE GATE ]
2023
[ This test belongs to Paid Members of KNOWLEDGE GATE ]
- A.
D
- B.
Z
- C.
S
- D.
Y
Attempted by 1 students.
Show answer & explanation
Correct answer: A
Concept: In a spiral (coil) letter-series puzzle, the shapes are read along a continuous adjacency path winding from an outer edge toward the centre. Consecutive shapes along that path carry letters that advance by one fixed number of alphabet positions, wrapping from Z back to A when the count runs past 26.
Application: Tracing the physical path here -- bottom-right, bottom-left, middle-left, top-left, top-right (the missing shape), middle-right, then the centre -- gives the reading order F, L, R, X, ?, J, P.
F (6th letter) to L (12th letter): advances by 6 positions.
L (12th letter) to R (18th letter): advances by 6 positions -- confirms a constant step of 6.
R (18th letter) to X (24th letter): advances by 6 positions again.
Apply the same step to X: 24 + 6 = 30; wrapping past Z (26) gives position 4, which is D.
Cross-check: Continue the same step past the missing shape -- D (4) + 6 = 10 = J, which matches the given letter; J (10) + 6 = 16 = P, which matches the centre letter. Both transitions after the missing shape confirm D independently, so the answer is D.
Answer: D