Question

Which of the following sequences is NOT arithmetic?

6, 11, 16, 21, 26
-5, -3, -1, 1, 3
10,5, 0, -5, -10
7,4, 1,-1, -3, -6

Answer 1

-5-3-1 1 3

Explanation:

it doesn't follow a pattern like the other ones

Answer 2

Answer: The Torro Hailstorm Intensity Scale