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The number of ways to arrange the letters of CAT is:
A3
B6
C9
D27
Answer & Solution
Correct answer: B. 6
1. Permutations of 3 distinct letters = 3! = 6.
2. Sequences: CAT, CTA, ACT, ATC, TAC, TCA.
3. Hence 6.
_Source: UGC NET Paper 1 Study Book (ugc-net.com class notes) — Permutations_