Multiple choice

Find the wrong number in the following number series. $8, 9, 17, 26, 43, 70, 112, 181$

  1. $112$
  2. $43$
  3. $70$
  4. $26$

  5. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The pattern is Fibonacci-style: each term equals sum of previous two. 8+9=17 ✓, 9+17=26 ✓, 17+26=43 ✓, 26+43=69 ✗ (should be 70), 43+70=113 ✗ (should be 112), 70+112=182 ✗ (should be 181). Once 70 appears incorrect, subsequent terms are affected. The first error is 70.

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