If ‘BLACK’ is written as 1242133 in a code language, then how will ‘RED’ be…
2022
If ‘BLACK’ is written as 1242133 in a code language, then how will ‘RED’ be written in that code language?
- A.
5619
- B.
5618
- C.
4518
- D.
4519
Attempted by 51 students.
Show answer & explanation
Correct answer: A
Concept:
In this letter-to-number coding, the word's letters are first reversed. Each letter's position in the English alphabet (A = 1, B = 2, …, Z = 26) is then increased by 1, and the resulting numbers are written one after another with no separator, in that reversed order, to form the code.
Applying the rule to BLACK:
Reversed letter | Alphabet position | Position + 1 |
|---|---|---|
K | 11 | 12 |
C | 3 | 4 |
A | 1 | 2 |
L | 12 | 13 |
B | 2 | 3 |
Concatenating these adjusted values in order (K, C, A, L, B) gives 12, 4, 2, 13, 3 → 1242133, exactly matching the code given for BLACK.
Applying the same rule to RED:
Reversed letter | Alphabet position | Position + 1 |
|---|---|---|
D | 4 | 5 |
E | 5 | 6 |
R | 18 | 19 |
Concatenating these adjusted values in order (D, E, R) gives 5, 6, 19 → 5619.
Cross-check:
The digit count also matches the pattern: BLACK's code has 7 digits because two of its five reversed letters (K → 12, L → 13) land in the two-digit range after the +1 adjustment (2 + 1 + 1 + 2 + 1 = 7). RED's reversed letters give one two-digit value (R → 19) and two single-digit values (D → 5, E → 6), so the code has 1 + 1 + 2 = 4 digits — consistent with the 4-digit format of every option offered.
Result: RED is coded as 5619.