Multiple choice Directions: Find the missing number in the following series: 15, 31, 95, 383, ? 984 1098 1865 1919 2014 Reveal answer Fill a bubble to check yourself D Correct answer Explanation Pattern: 15*2+1=31, 31*3+2=95, 95*4+3=383, 383*5+4=1915+4=1919.