求助一道gre数学题,谢谢~求详细解析~~ThecompanyatwhichMarkisemployedhas80employees,eachofwhomhasadifferentsalary.Mark’ssalaryof$43,700isthesecond-highestsalaryinthefirstquartileofthe80salaries.Ifthecom

Question

求助一道gre数学题,谢谢~求详细解析~~
The company at which Mark is employed has 80 employees, each of whom has a different salary. Mark’s salary of $43,700 is the second-highest salary in the first quartile of the 80 salaries. If the company were to hire 8 new employees at salaries that are less than the lowest of the 80 salaries, what would Mark’s salary be with respect to the quartiles of the 88 salaries at the company, assuming no other changes in the salaries?
a.The fourth-highest salary in the first quartile
b.The highest salary in the first quartile
c.The second-lowest salary in the second quartile
d.The third-lowest salary in the second quartile
e.The fifth-lowest salary in the second quartile
我题没有很明白,但是应该是用四分位的方式解题,期望大牛们不吝赐教,谢谢!

Answer 1

选e
题目是Mark就职于一家有80人的公司,每个人的工资各不相同.Mark现在是第一分位中第二高的.如果公司此时再聘用8名新员工,并且他们的工资比以前所有人的工资都要低.问现在88人中,Mark的工资排在什么位置上?
之前,Mark排在 80/4-1=19位,现在19+8=27位,88/4=22,27-22=5,所以是第二分位倒数第五.