Multiple choice

Which number is wrong according to the given number series pattern? 14, 15, 32, 100, 400, 2005, 12036

  1. 32

  2. 100

  3. 400

  4. 2005

  5. 12036
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B Correct answer
Explanation

Pattern: 14*1+1=15, 15*2+2=32, 32*3+3=99 (not 100), 99*4+4=400, 400*5+5=2005, 2005*6+6=12036. The wrong number is 100.

AI explanation

The pattern multiplies each number by an increasing integer and then adds that same integer. The terms are 14 times 1 plus 1 equals 15, 15 times 2 plus 2 equals 32, and 32 times 3 plus 3 equals 99. Following this logic, 99 times 4 plus 4 equals 400, and 400 times 5 plus 5 equals 2005, which means the wrong number in the series is 100.

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