Question

C Programming

use notes

Start by asking the user how many grades are to be entered. Then ask for each one of theses grades. Calculate the average grade and the number of failing grades (grade less than 70). Display on the screen the average grade and the number of failing grades

Answer 1

C code:

#include <stdio.h>
int main()
{
    //initializing total Number of grades and number of failing grades as 0
    int num,fail=0;
    //initializing grade and average
    float grade,average=0;
    //asking for number of grades
    printf("How many grades are to be entered: ");
    //accpeting it
    scanf("%d",&num);
    //loop to accept all grades
    for(int i=0;i<num;i++){
        //asking for grade
        printf("Enter the grade: ");
        //accepting it
        scanf("%f",&grade);
        //adding it to average
        average+=grade;
        //checking for failing grade
        if(grade<70)
        //incrementing count of fail
            fail++;
    }
    //printing Average grade
    printf("Average grade = %.2f\n",average/(float)num);
    //printing Number if failing grades
    printf("Number of failing grades = %d",fail);
    return 0;
}

Screenshot:

Input and Output: