The number 20 comes after 38, 36, 30, 28, and 22 in the sequence. Since there are no inherent differences among the numbers, this is discovered by looking for patterns in the supplied series of numbers.
The first number in the sequence is 38, and each number after that differs by two or six. Instead of advancing, the series is falling. The number preceding 22 is 28, and the final number is 22. There are six differences between them.
As a result, the next number should be different by two. The following number in the given sequence of numbers is provided by the equation 22 – 2 = 20.