Multiple choice

Passage

Section A : Logical Reasoning

Which of the following numbers is incorrect in the given sequence? 3, 2, 8, 9, 13, 22, 18, 32, 23, 42

  1. 3

  2. 9

  3. 13

  4. 32
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B Correct answer
Explanation

The sequence consists of two alternating series. The first series at odd positions is 3, 8, 13, 18, 23, which increases by 5 each time. The second series at even positions is 2, 9, 22, 32, 42, which should increase by 10 each time, meaning the number 9 is incorrect and should be 12.

AI explanation

The sequence alternates between two different patterns in the odd and even positions. The odd positions increase by 5 (3, 8, 13, 18, 23), while the even positions increase by 10 (2, 12, 22, 32, 42). The number 9 breaks the even position pattern, as it should be 12 to correctly follow the addition of 10.

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