选择题
2013 AMC 8 Problem 16: Fibonacci Middle Ratios
A number of students from Fibonacci Middle School are taking part in a community service project. The ratio of 8th-graders to 6th-graders is 5:3, and the ratio of 8th-graders to 7th-graders is 8:5. What is the smallest number of students that could be participating in the project?
2013 AMC 8 第 16 题：斐波那契中间比率
斐波那契中学的一些学生正在参加社区服务项目。八年级与六年级学生的比例为5：3，八年级与七年级学生的比例为8：5。参与该项目的最少学生人数是多少
A.
16
B.
40
C.
55
D.
79
E.
89