Practice Letter Coding MCQs for ISSB Academic & Intelligence Test intelligence — topic-wise sets with solved answers.
Q1. If CLOUD is coded as DMPVE, then RAIN is coded as:
Answer: SBJO
Explanation: Each letter +1: R→S, A→B, I→J, N→O. Pattern coding (+1 shift) is the most common ISSB coding rule.
Q2. If ARMY → BSNZ, NAVY → ?
Answer: OBWZ
Explanation: Each letter +1: N→O, A→B, V→W, Y→Z. Identify the relationship between the pair, then apply the same logic to the choices.
Q3. If CAT = 3120, DOG = ? (A=1, B=2...)
Answer: 4157
Explanation: D=4, O=15, G=7 → 4157. Work each step carefully; ISSB math rewards accuracy under time pressure.
Q4. If SOLDIER is coded as TPMEJFS, how is CADET coded?
Answer: DBEFU
Explanation: Each letter shifts +1: C to D, A to B, D to E, E to F, T to U.
Q5. MUSIC written backwards letter by letter gives:
Answer: CISUM
Explanation: Reverse order: C-I-S-U-M. Watch for letter order in intelligence sections. Identify the relationship between the pair, then apply the same logic to the choices.
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