Select the number which can be placed at the sign of the question mark (?) from the given alternatives.

10

13

8

8

5

12

7

11

4

73

54

?

  1. 91
  2. 95
  3. 92
  4. 85

Answer (Detailed Solution Below)

Option 3 : 92
Free
RRB NTPC CBT-I Official Paper (Held On: 4 Jan 2021 Shift 1)
100 Qs. 100 Marks 90 Mins

Detailed Solution

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The logic here is:

Column 1: (10 × 8) – 7 = 80 – 7 = 73

Column 2: (13 × 5) – 11 = 65 – 11 = 54

Column 3: (8 × 12) – 4 = 96 – 4 = 92

Hence, ‘92’ is the correct answer. 

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