# 17, 19, 23, 29, 33, 37, 41

Find the incorrect number given in the following series:

17, 19, 23, 29, 33, 37, 41

(a) 17

(b) 33

(c) 23

(d) 41

**Answer: (b) 33**

**Solution:-**

17 + 2 = 19, 19 + 2 x 2 = 19 + 4 => 23, 23 + 2 x 3 = 23 + 6 => 29, 29 + 2 x 4 = 29 + 8 => 37,

Then, the incorrect number is 33.

Hence, the correct answer is option (b) 33.