Multiple choice

Directions: Find the wrong number in the given series. 3 10 36 180 1080 7560 60480

  1. 3

  2. 10

  3. 36

  4. 180

  5. 1080
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B Correct answer
Explanation

The series follows a pattern of multiplying by increasing integers: 3*1=3, 3*2=6 (not 10), 6*6=36, 36*5=180, 180*6=1080, 1080*7=7560, 7560*8=60480. However, the pattern is actually 3*1=3, 3*2=6, 6*6=36, 36*5=180, 180*6=1080, 1080*7=7560, 7560*8=60480. Looking closer, the sequence is 3*1=3, 3*2=6, 6*6=36, 36*5=180, 180*6=1080. The sequence is 3, 6, 36, 180, 1080, 7560, 60480. The term 10 is clearly wrong.

AI explanation

The series multiplies each number by consecutive integers starting from 2. Multiplying 3 by 2 gives 6, but the series incorrectly lists 10. Continuing the correct pattern of 6 multiplied by 3 gives 18, and 18 multiplied by 4 yields 72, which is half of 36, proving 10 is the wrong number.

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