In a certain coding language, if ‘CRICKET’ is coded as 2632479, ‘ROCKET’ is…
2022
In a certain coding language, if ‘CRICKET’ is coded as 2632479, ‘ROCKET’ is coded as 612479, and ‘KETTLE’ is coded as 479907, then how shall ‘LOCKER’ be coded in that language?
Answer: D. 012476 — CONCEPTIn a fixed substitution code, each letter always maps to the same digit wherever it appears. Repeated letters and overlapping words reveal the…
- A.
102674
- B.
021647
- C.
120764
- D.
012476
Attempted by 3 students.
Show answer & explanation
Correct answer: D
CONCEPT
In a fixed substitution code, each letter always maps to the same digit wherever it appears.
Repeated letters and overlapping words reveal the letter–digit pairs; the target word is encoded by writing those known digits in the target word’s order.
APPLICATION
Aligning the given words with their codes yields the following stable mapping:
Letter / अक्षर | Digit / अंक |
|---|---|
L | 0 |
O | 1 |
C | 2 |
K | 4 |
E | 7 |
R | 6 |
From ROCKET → 612479 and CRICKET → 2632479, the shared letters confirm R→6, C→2, K→4, E→7, and T→9; ROCKET also gives O→1.
From KETTLE → 479907, the repeated T gives 9 in both positions, E gives 7 in both positions, and L→0.
Apply the mapping to LOCKER in order: L→0, O→1, C→2, K→4, E→7, R→6.
CROSS-CHECK
Substituting the same values back into ROCKET gives 6-1-2-4-7-9, exactly 612479, so the mapping is consistent.
Therefore, LOCKER is coded as 012476.