Implementing Interfaces to Print the Exam Result

import java.util.Scanner;
interface Exam{
    boolean pass(int marks);
}
interface Classify{
    String division(int average);
}
class Result implements Exam, Classify{
    public boolean pass(int marks){
        if(marks > 40) return true;
        else return false;
    }
    public String division(int average){
        if(average < 40) return "Third";
        else if (average > 40 && average < 60) return "Second";
        else return "First";
    }
    public static void main(String[] args){
        int DSA, OOPM, DBMS;
        Scanner sc = new Scanner(System.in);
        Result r = new Result();
        System.out.print("Enter marks for DSA on 100: ");
        DSA = sc.nextInt();
        if(r.pass(DSA)) System.out.println("Passed in DSA.");
        else System.out.println("Failed in DSA.");
        System.out.print("Enter the score for OOPM on 100: ");
        OOPM = sc.nextInt();
        if(r.pass(OOPM)) System.out.println("Passed in OOPM.");
        else System.out.println("Failed in OOPM.");
        System.out.print("Enter the score for DBMS on 100: ");
        DBMS = sc.nextInt();
        if(r.pass(DBMS)) System.out.println("Passed in DBMS.");
        else System.out.println("Failed in DBMS.");
        System.out.println("The class is "+r.division((DSA+OOPM+DBMS)/3));
    }
}