10.(C)Average of three given integer number

 #include<stdio.h>

int main(){

    int a,b,c;

    float avg;

    printf("Enter the value of a,b,c \n");

    scanf("%d%d%d",&a,&b,&c);

    avg= (float)(a+b+c)/3;  // we have use float here to get the output in decimal

    printf("The average is %.2f",avg); // .2f for printing two decimal after integer

    return 0;

}