Crystal Reports Group by field and then get rank

Message

   Dear All,
I am designing a student management system and i am requesting for your help in the design of a report( Report Card). The details of the report are as follows.

Student Subject Marks
1          Eng        50
1          Math       63
1          Sci          54

2         Eng        51
2          Math       73
2         Sci          64

3         Eng        45
3          Math      67
4         Sci          46

4         Eng        25
4          Math      57

So what i want to do is get a report that will display all the subjects and marks per student per page and rank the student by the total marks of the three subject. 

For instance using the data above 
Student  Totalmarks Rank
1             167            3
2             188            1
3             188            1
4             128            4

So each page should show a students Rank , subjects, marks and total marks.

Kindly assist, thanks in advance.