The next number in series: 27, 32, 30, 35, 33 _____?

The next number in series: 27, 32, 30, 35, 33 _____?

Explanation

The pattern in the series appears to be alternating between adding and subtracting.

27 + 5 = 32

32 - 2 = 30

30 + 5 = 35

35 - 2 = 33

33 + 5 = 38