Create a package which contains function to ask the user to enter the student’s marks and determine the GRADE according to the following criteria. >90 A >80AND 70AND 60 AND<70 D <60 F

Create a package which contains function to ask the user to enter the student’s marks and determine the GRADE according to the following criteria. >90 A >80AND <90 B >70AND <80 C >60 AND<70 D <60 F