Subject's mark Grade
>=80+
A
70-79
B
60-69
C
50-59
D
40-49
E
<40
F
#include<stdio.h>
#include<conio.h>
int main()
{
int m1, m2, m3, m4, m5,per;
printf("Enter the 5 subject number:");
scanf("%d %d %d %d %d",&m1,&m2,&m3,&m4,&m5);
per=(m1+m2+m3+m4+m5)/5;
if(per>=80 && per<=100)
{
printf("Grade=A");
}
else if (per>=70 && per<=79)
{
printf("Grade=B");
}
else if (per>=60 && per<=69)
{
printf("Grade=C");
}
else if (per>=50 && per<=59)
{
printf("Grade=D");
}
else if (per>=40 && per<=49)
{
printf("Grade=E");
}
else
{
printf("Grade=F");
}
getch();
return 0;
}