Introduction

C program to input roll number, student name and marks of three subjects (Physics, Chemistry and Information Technology) and calculate total marks, percentage and division of student. I have used DEV-C++ compiler for debugging purpose. But you can use any C programming language compiler as per your availability.

#include <stdio.h>
#include <string.h>

void main()
{
    int rollno, phy, che, it, total;
    float percentage;
    char name[20], div[10];
    
    printf("Input the Roll Number of the student :");
    scanf("%d", &rollno );
    
    printf("Input the Name of the Student :");
    scanf("%s", name);
     
    printf("Input the marks of Physics, Chemistry and Information Technology: ");
    scanf("%d%d%d", &phy, &che, &it);
    
    total = phy + che + it;
    percentage = total/3.0;
    
    if (percentage >= 60)
    strcpy(div, "First");
    
    else
    if (percentage < 60 && percentage >= 48)
        strcpy(div,"Second");
        
    else
        if (percentage <48 && percentage >= 36)
        strcpy(div, "Pass");
        
         else
        strcpy(div, "Fail");

       printf("\nRoll No : %d\nName of Student : %s\n", rollno, name);
       printf("Marks in Physics : %d\nMarks in Chemistry : %d\nMarks in Information Technology : %d\n", phy, che, it);
       printf("Total Marks = %d\nPercentage = %5.2f\nDivision = %s\n", total, percentage, div);
}

Result