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  9. Q83

IBPS PO 2020 · Question 83 of 99

Find the wrong number in the given series: 72, 32, 20, 24, 28, 40

Number Series

  1. A28
  2. B20Correct
  3. C40
  4. D24
  5. E32

Answer: B. 20

Explanation

The series follows the following pattern: 72 - 64 = 8; 8 + 32 = 40; 40 - 16 = 24; 24 + 8 = 32; 32 - 4 = 28. Therefore, the wrong number is 20.

Source: IBPS PO 10-Oct-2020 Prelims Memory Based Paper Shift 1 (Prepp) · memory-based

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