Multiple choice

Find the wrong number in the following number series. $2 \; 5 \; 7 \; 12 \; 19 \; 32 \; 50$

  1. $7$
  2. $12$
  3. $19$
  4. $32$
  5. $50$
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D Correct answer
Explanation

Pattern: each term is sum of previous two terms (Fibonacci-style). 2+5=7✓, 5+7=12✓, 7+12=19✓, 12+19=31 (not 32), 19+32=51 (not 50). The term 32 breaks the pattern - it should be 31.