Code:#include<stdio.h> #include<conio.h> void main() { int roll,fm,sm,tm,total; float avg; printf("Enter the the roll number\n"); scanf("%d\n",&roll); printf("Enter the first_marks"); scanf("%d\n",&fm); printf("Enter the second_marks"); scanf("%d\n",&sm); printf("Enter the third_marks"); scanf("%d\n",&tm); total=fm+sm+tm; avg=total/3; printf("REPORT CARD\n"); printf("The marks of three subjects are %d %d %d\n",fm,sm,tm); printf("The total marks are %d\n",total); printf("The average is %f ",avg); getch(); }