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  9. Q94

ibps-rrb-os1 2021 · Question 94 of 173

209, ?, 217, 187, 255, 125

Number Series

  1. A203
  2. B207Correct
  3. C196
  4. D202
  5. E199

Answer: B. 207

Explanation

The pattern of the series is: 209 − (13 + 1) = 207 207 + (23 + 2) = 217 217 − (33 + 3) = 187 187 + (43 + 4) = 255 255 − (53 + 5) = 125

Source: IBPS RRB PO Mains 2021 Memory Based Paper (Adda247/BankersAdda) · memory-based

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