Multiple choice

Find the wrong number in the following number series. 5, 11, 24, 47, 95, 191

  1. 11

  2. 24

  3. 47

  4. 95

  5. 191
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B Correct answer
Explanation

Pattern: each term is 2 × previous + 1. Starting with 5: 2(5)+1=11, 2(11)+1=23, 2(23)+1=47, 2(47)+1=95, 2(95)+1=191. The given 24 violates this pattern (should be 23). All other terms fit the rule.

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