WBCS 2022 · Question 146 of 191
Reasoning
Official WBPSC key (Series A): (D) J58Q. First letters +2 (B,D,F,H→J), last letters +3 (E,H,K,N→Q), middle ×2+n (2,5,12,27→58).
Source: WBCS (Exe) etc. (Prelim) 2022, Series A
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