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高三数学总复习试卷上有这样一道题目:在某次数学考试中,学号为i(i=1,2,3,4)的同学的考试成绩f(i)∈{85,87,88,90,93}且满足f(1)≤f(2)f(3)f(4),则这四位同学的考试成绩的所有可能情况有种.解若“≤”号取“=”,即f(1)=f(2)f(3)f(4),则考试成绩的所有可能情况有C53种,若“?
The third grade mathematics review book has such a topic: In a certain number of examinations, the student’s test score i (i = 1, 2, 3, 4) test score f (i) ∈ {85,87,88, 90, 93} and satisfy f(1) ≤ f(2)f(3)f(4), all possible conditions of the test scores of the four students are kind. If the solution “≤” is taken as “=”, That is, f(1) = f(2)f(3)f(4), then all possible cases of test scores are C53, if "?