Find the next number in the sequence: 2, 6, 12, 20, 30, ?
Try the interactive quiz above, or study the options and notes below.
Answer choices
Learning notes
The differences between the numbers increase by 2 each time (+4, +6, +8, +10). The next difference is +12, so 30 + 12 = 42. Alternatively, the sequence follows the formula n(n+1) for n = 1, 2, 3, 4, 5, 6.