Multiple choice

Find the wrong number in the given series? 12, 13, 25, 38, 63, 104, 164

  1. 25

  2. 38

  3. 63

  4. 104

  5. 164
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Checking the pattern: 12 + 13 = 25 (correct), 13 + 25 = 38 (correct), 25 + 38 = 63 (correct), 38 + 63 = 101, but 104 is given. The pattern should give 101, not 104. Continuing: 63 + 101 = 164 (correct). So 104 is the wrong number - it should be 101. This is a Fibonacci-style series where each term is the sum of the previous two.

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