Question
L4T, M3Q, N4N, O9K, (?)
Solution
1st letter:  L + 1, M + 1, N + 1, 0 + 1 Middle letter: × 1 - 1,  × 2 - 2,× 3 – 3, × 4 – 4  3rd letter: T – 3, Q – 3, N – 3, K - 3Â
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Â
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