Average high level question ssc ibps

Question:-
                    Average in an examination 1/4th of total no. of students obtain 2/5th of total marks, 1/8th of total students obtain 4/5th of total marks,2/5th part of students obtain 3/4th of total marks & remaining students obtain 1/5th of total marks. If average marks of all students is 327. Find total marks of exam.                                                                
a) 500               (b) 600           (c) 700             (d) 800

uSolution:-

                             Best of luck