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      Question

      In each of the following series, one term is missing.

      Find the missing term. 1, 2, 6, 21, 88, ?
      A 375 Correct Answer Incorrect Answer
      B 445 Correct Answer Incorrect Answer
      C 525 Correct Answer Incorrect Answer
      D 440 Correct Answer Incorrect Answer
      E None of these Correct Answer Incorrect Answer

      Solution

      1 β†’ 2: 1 Γ— 1 + 1 = 2 2 β†’ 6: 2 Γ— 2 + 2 = 6 6 β†’ 21: 6 Γ— 3 + 3 = 21 21 β†’ 88: 21 Γ— 4 + 4 = 88 Pattern: term β‚™ = term ₙ₋₁ Γ— n + n Next (n = 5): Missing term = 88 Γ— 5 + 5 = 440 + 5 = 445

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