The number 20 comes after the numbers 38, 36, 30, 28, 22. Because there is no common difference between each number, this is obtained by looking for patterns in the supplied series of integers.
The series’ first term is 38, with each successive number differing by two or six. The sequence is descending rather than ascending. The number before 22 is 28, while the number after 22 is 22. There are six differences between them. As a result, the next number should differ by two. The equation 22 – 2 = 20 calculates the next number in the given sequence.