If 1 + 2 = 5, 2 + 3 = 13, 3 + 4 = 25 then 2 + 4 = ?A. 8B. 15C. 20D. 6 0 0 votesArticle Rating Subscribe LoginNotify of new follow-up commentsnew replies to my comments Label {} [+] Name* Email* Website Label {} [+] Name* Email* Website 0 Comments Oldest Newest Most Voted Inline FeedbacksView all comments