数学很烂，今天刚开始看OG就出现问题了~ OG75. Leona bought a 1-year, $10,000 certificate of deposit that paid interest at an annual rate of 8 percent compounded semiannually. What was the total amount of interest paid on this certificate at maturity? 不是很明白这道题目的意思~ Data Sufficiency: OG7. What percent of a group of people are women with red hair? 1. Of the women in the group, 5 percent have red hair. 2. Of the men in the group, 10 percent have red hair. 我想选A, 因为觉得A与题目表达的意思一样~ 各位大侠帮帮忙~呵呵~ | 
