A sum of money placed at compound interest doubles itself in 5 years. It will amount to eight times itself at the same rate of interest in:A. 15 yearsB. 7 yearsC. 12 yearsD. 30 years 0 0 votesArticle Rating Subscribe LoginNotify of new follow-up commentsnew replies to my comments Label {} [+] Name* Email* Website Δ Label {} [+] Name* Email* Website Δ 0 Comments Oldest Newest Most Voted Inline FeedbacksView all comments