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  9. Q92

ibps-rrb-os1 2024 · Question 92 of 270

42, 85, 172, 343, 687, 1375

Number Series

  1. A42
  2. B172Correct
  3. C85
  4. D1375
  5. ENone of these

Answer: B. 172

Explanation

ATQ, 42 X 2 + 1 = 85 85 X 2 + 1 = 171 171 X 2 + 1 = 343 343 X 2 + 1 = 687 687 X 2 + 1 = 1375 Therefore, 171 will come in place of 172.

Source: IBPS RRB PO Prelims 2024 Memory Based Paper Shift 2 — Answer Key & Detailed Solutions (memory-based compilation, ixamBee) · memory-based

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