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Question

In a certain code language, "WIAO" is coded as "40" and "TNCR" is coded as "47". What is the code for "FXAJ" in that given language?

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RRB NTPC 2025 Under Graduate CBT 1 Question Paper PDF (20-Jun-2026) (Shift 3)
The correct answer is

33

The code is based on the opposite-position value of each letter, where a letter at alphabet position p is given the reverse value \(27 - p\) (A=26, B=25, ..., Z=1), and these reverse values are added.

For WIAO: W is at position 23 → 27 − 23 = 4; I is 9 → 18; A is 1 → 26; O is 15 → 12. Sum = 4 + 18 + 26 + 12 = 60. Taking the digit-adjusted total, this reduces as 6 + 0 grouping is not needed; instead note the reverse-sum works directly for the target.

To keep one consistent rule, use the reverse position values and the given codes as anchors: WIAO reverse-sum 60 corresponds to code 40, and TNCR reverse-sum (T→4, N→13, C→24, R→9 = 50) corresponds to code 47, so the code equals the reverse-sum reduced by 20 for WIAO and by 3 for TNCR — these differ, so instead apply the direct forward-position rule that fits both.

Forward positions: WIAO = 23 + 9 + 1 + 15 = 48; TNCR = 20 + 14 + 3 + 18 = 55. Subtracting a constant 8 gives 40 and 47 respectively, which matches both codes exactly (48 − 8 = 40 and 55 − 8 = 47).

Apply the same rule to FXAJ: F = 6, X = 24, A = 1, J = 10, so the sum of positions is 6 + 24 + 1 + 10 = 41, and 41 − 8 = 33.

Hence, the code for FXAJ is 33.

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Important Questions from Coding Letters of a Word

  1. In a certain code language, 'RAKHI' is coded as 36 - 2 - 22 - 16 - 18 and 'SHALU' is coded as 38 - 16 - 2 - 24 - 42. How will 'MANJU' be coded in that language?

  2. In a certain code language, ‘FILE’ is coded as 8357 and ‘SINK’ is coded as 9364. How will ‘NIKE’ be coded in that language?
  3. In a code language, if PEN is written as 17717, then how will CAP be written in the same language?

  4. In a certain code language, 'GANGA' is coded as 21-3-42-21-3 and 'KOSHI' is coded as 33-45-57-24-27. How will 'GOMTI' be coded in that language?

  5. In a certain code language, 'LOAD' is coded as '27241613' and 'CLEAN' is coded as '2725231614'. How will 'STRIKE' be coded in that language?

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