Multiple choice

Directions: Find the wrong term in the following number series: 0, 6, 6, 60, 20, 210, 49, 504

  1. 6

  2. 60

  3. 120

  4. 49

  5. 504

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The series is two interleaved sequences: 0, 6, 20, 49 (first, third, fifth, seventh terms) and 6, 60, 210, 504 (second, fourth, sixth, eighth terms). The second sequence follows n(n+1)(n+2) for n=1, 3, 5, 7, but 49 is incorrect for the first sequence pattern.