Q6: Write a c program for grading system of the students.

#include<stdio.h>

#include<conio.h>

void main()

{

int marks,sci,maths,social,eng,hindi,total;

float avg;

clrscr();

                printf("\t\tSTUDENT GRADES\n");

                printf("\nEnter the marks:");

                printf("\nFor ENGLISH:");

                scanf("%d",&eng);

                printf("\nFor HINDI:");

                scanf("%d",&hindi);

                printf("\nFor SCIENCE:");

                scanf("%d",&sci);

                printf("\nFor MATHEMATICS:");

                scanf("%d",&maths);

                printf("\nFor SOCIAL SCIENCE:");

                scanf("%d",&social);

                                total=eng+hindi+sci+maths+social;

                                avg=total/5;

                printf("\n\tTOTAL MARKS OBTAINED STUDENT: %d",total);

                printf("\n\n\tAVERAGE PERCENTAGE OBTAINED STUDENT: %f\n\n",avg);

                if(avg>=90)

                {

                                printf("\tGRADE: O");

                }

                if(avg>=80 && avg<90)

                {

                                printf("\tGRADE: E");

                }

                if(avg>=70 && avg<80)

                {

                                printf("\tGRADE: A");

                }

                if(avg>=60 && avg<70)

                {

                                printf("\tGRADE: B");

                }

                if(avg>=50 && avg<60)

                {

                                printf("\tGRADE: C");

                }

                if(avg>=40 && avg<50)

                {

                                printf("\tGRADE: D");

                }

                if(avg<40)

                {

                                printf("\tGRADE: F ");

                }

                printf("\nO:Outstanding\nE:Excellent\nA:Very Good\nB:Good\nC:Average\nD:Just Passed\nF:Failed");

getch();

}