Multiple choice Find the next term of the following series. 9, 11, 13, ... 10 15 17 20 Reveal answer Fill a bubble to check yourself B Correct answer Explanation 9, 11, 13, ... 9 + 2 = 11 11 + 2 = 13 Add 2 to each term to get the next term. So, the next term will be 13 + 2 = 15.