Question

Tasks: Write a program to calculate the average score for a student. The class has three hands-on test (30%), two assignments (20%) and a final exam (50%). The maximum score for all test, assignment and exam is 100 points. Tips: 1. Determine who the end user is. 2. Determine what are input that the user needs to provide. 3. Determine the process of the input. 4. Determine the output from the process. 5. Construct a flow chart and C program.

Answer 1

C Code:

#include <stdio.h>

int main()
{
float a, b, c, avg1, avg2, avg3, overallavg;
printf("Enter the marks in Three hands on test\n");    //Enter Three hands on test marks
scanf ("%f %f %f", &a, &b, &c);
avg1 = (a+b+c)/3;                                       //Calculate average of Three hands on tests                      
printf("Enter the marks in Two assignments\n");           //Enter Two assignments marks
scanf ("%f %f", &a, &b);
avg2 = (a+b)/2;                                           //Calculate average of Two assignments
printf("Enter the marks in Final exam\n");               //Enter marks
scanf ("%f", &avg3);
overallavg = (0.3*avg1+0.2*avg2+0.5*avg3);               //Calculate overall average  
printf("The Overall average of the student is %f\n", overallavg); //Display overall average
return 0;
}

Program Screenshot:

7 C Student Average.c 1 #include <stdio.h> 2. 3 int main() 4 { float a, b, c, avgi, avg2, avg3, overallavg; 6 printf("Enter the marks in Three hands on test\n"); 1/Enter Three hands on test marks scanf ("%f %f %f", &a, &b, &c); 8 avg1 = (a+b+c)/3; // Calculate average of Three hands on tests printf("Enter the marks in Two assignments\n"); //Enter Two assignments marks scanf ("%f %f", &a, &b); 11 avg2 = (a+b)/2; //Calculate average of Two assignments 12 printf("Enter the marks in Final exam\n"); //Enter Final exam marks 13 scanf ("%f", &avg3); overallavg - (0.3*avg1+0.2*avg2+0.5*avg3); //Calculate overall average 15 printf("The Overall average of the student is %f\n", overallavg); //Display overall average 16 return; 9 10 14 17

Output Screenshot:

Enter the marks in Three hands on test 95 94 93 Enter the marks in Two assignments 95 94 Enter the marks in Final exam 92 The Overall average of the student is 93.099998

Flowchart:

Start A Enter Three hands on test marks Display the Overall Average marks exerallaxg Calculate Average of Three hands on test marks - avgi Stop Enter Two assignments marks Calculate Average of Two assignments marks - avg2 Enter Final Exam marks - avg3 Calculate Overall Average marks. oxerallaxg = (0.3*avg1+0.2*avg2+0.5* avg3) А