Question

​7.​In an English class, a student is given 3 term tests (marked out of 25) and an end-of-term test (marked out of 100). The end-of-term test counts the same as the 3 term tests in determining the final mark (out of 100). Write a program to read marks for the 3 term tests followed by the mark for the end-of-term test. The program then prints the final mark and an indication of whether the student passes or fails. To pass, the final mark must be 50 or more.

​​For example, given the data 20 10 15 56, the final mark is calculated by

​´ 50 + ´ 50 = 58. selection logic c programming

​7.​In an English class, a student is given 3 term tests (marked out of 25) and an end-of-term test (marked out of 100). The end-of-term test counts the same as the 3 term tests in determining the final mark (out of 100). Write a program to read marks for the 3 term tests followed by the mark for the end-of-term test. The program then prints the final mark and an indication of whether the student passes or fails. To pass, the final mark must be 50 or more.

​​For example, given the data 20 10 15 56, the final mark is calculated by

​´ 50 + ´ 50 = 58 . in selection logic

Answer 1

#include<stdio.h>
int main()
{
    //variable declaration
    float tm1,tm2,tm3,ett,total,avg;
    //ask user for three term test marks
    printf("\n Enter three term test marks");
    //read three marks
    scanf("%f%f%f",&tm1,&tm2,&tm3);
    //validate three marks. -ve marks or greatyer to 25 will not be allowed
    if(tm1<0 || tm1>25 ||tm2<0 || tm2>25 || tm3<0 || tm3>25 )
    {
            printf("\n Invalid term test Marks");
            exit(0);
   }
   //ask user for end term mark
    printf("\n Enter the mark of end of term test");
    //read the end term mark
    scanf("%f",&ett);
    //validate end term mark. -ve marks or greatyer to 100 will not be allowed
    if(ett<0 || ett>100)
    {
           printf("\n Invalid end of term test Mark");
            exit(0);
   }
   //compute the average percentage of three term test marks
    avg = ((tm1*100)/25 + (tm2*100)/25 + (tm3*100)/25)/3;
    //compute the final percentage of mark by adding the percentage of term tests and end term test //by 2
    total = (avg + ett)/2;
    //display the total percentage marks
    printf("\n Percentage : %5.2f",total);
    //condition for pass percentage
    if(total >=50)
    printf("\nRESULT : PASS");
    else //display the result fail
    printf("\n RESULT : FAIL");

}

OUTPUT