Multiple choice

Find the wrong number in the following number series. 276, 309, 344, 382, 420, 461

  1. 382

  2. 344

  3. 420

  4. 461
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A Correct answer
Explanation

Checking the pattern: 276+33=309, 309+35=344, 344+38=382, 382+38=420, 420+41=461. The additions should increase: 33, 35, 38, 38, 41. The jump 382→420 adds only 38, same as previous. If 382 were 380: 380+40=420, then 420+41=461 would fit better. 382 is the wrong number.

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