In certain code, SELECTION is coded as QCJCARGML. The code of AMERICANS will be
2016
In certain code, SELECTION is coded as QCJCARGML. The code of AMERICANS will be
Answer: A. YKCPGAYLQ — Concept: A fixed-shift letter code replaces every plain letter by moving the same number of alphabet positions in the same direction. The alphabet is cyclic,…
- A.
YKCPGAYLQ
- B.
BNFSJDBMR
- C.
QLYAGPCKY
- D.
YQKLCYPAG
Attempted by 4 students.
Show answer & explanation
Correct answer: A
Concept:
A fixed-shift letter code replaces every plain letter by moving the same number of alphabet positions in the same direction. The alphabet is cyclic, so moving back from A continues at Z. Once the shift is identified from the example, it must be applied consistently to every letter of the new word.
Application:
Compare SELECTION with QCJCARGML position by position:
Plain letter | Code letter | Shift |
|---|---|---|
S | Q | 2 places back |
E | C | 2 places back |
L | J | 2 places back |
E | C | 2 places back |
C | A | 2 places back |
T | R | 2 places back |
I | G | 2 places back |
O | M | 2 places back |
N | L | 2 places back |
The table shows the same two-place backward shift at all nine positions, including both occurrences of E. Apply that rule to AMERICANS:
Write the letters in order: A, M, E, R, I, C, A, N, S.
Move each letter two places back: A → Y, M → K, E → C, R → P, I → G, C → A, A → Y, N → L, S → Q.
Join the shifted letters without changing their order: YKCPGAYLQ.
Cross-check:
Move every letter of YKCPGAYLQ two places forward. This returns A, M, E, R, I, C, A, N, S, so the transformation reproduces AMERICANS.
Therefore, the code for AMERICANS is YKCPGAYLQ.