Multiple choice Directions: Find the missing term in the following series. 3, 15, 4, 16, 5, 17, 6, ?, 7 12 13 15 18 Reveal answer Fill a bubble to check yourself D Correct answer Explanation The series is two interleaved series: 3, 4, 5, 6, 7 and 15, 16, 17, ?. The missing term follows 17, which is 18.