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English and Logical Reasoning Prep GuideLogical ReasoningSeries Completion

In the following series, a wrong term is given. Find the wrong term. A7, C7, F21, M42, U168

Options

  1. AC 7
  2. BF21
  3. CM42
  4. DU168

Correct answer

B. F21

Step-by-step solution

array |c|c|c|c|c|c|c|c|c|c|c|c|c|c| Alphabets & A & B & C & D & E & F & G & H & I & J & K & L & M Positional value & 1 & 2 & 3 & 4 & 5 & 6 & 7 & 8 & 9 & 10 & 11 & 12 & 13 Positional value & 26 & 25 & 24 & 23 & 22 & 21 & 20 & 19 & 18 & 17 & 16 & 15 & 14 Alphabets & Z & Y & X & W & V & U & T & S & R & Q & P & O & N array The pattern followed here is, aligned & A +2 C +4 C +6 M +8 C & 7 1 7 2 14 3 42 4 168 aligned Hence, the wrong term in the given series is F21.

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