Question

please i want solution for this question with algorithm and step by step with c++ language

1. write a program using for loop that calculates the total grade for N classroom exercises as a percentage. The user should input the value for N followed by each of the N scores and totals. Calculate the overall percentage (sum of the total points earned divided by the total points possible) and output it as a percentage. Sample input and output is shown below.How many exercises to input? 3
   
   Score received for exercise 1: 10
   Total points possible for exercise 1: 10
   
   Score received for exercise 2: 7
   Total points possible for exercise 2: 12
   
   Score received for exercise 3: 5
   Total points possible for exercise 3: 8
   
   Your total is 22 out of 30, or 73.33%.

Answer 1

#include <iostream>

using namespace std;

int main() {

int n, score = 0,score_var, total_var, total = 0;

cout << "How many exercises to input? ";

cin>>n;

for(int i = 1; i<=n ; ++i){

cout<<"Score received for exercise "<<i<<": ";

cin>>score_var;

cout<<"Total points possible for exercise "<<i<<": ";

cin>>total_var;

score = score + score_var;

total = total + total_var;

cout<<endl<<endl;

}

cout<<"Your total is "<<score<<" out of "<<total<<", or "<<score*100.0/total<<" %"<<endl;

}

============================================================
SEE OUTPUT

Algorithm Score( )

START

1. Read number of exercises , Read(n)

2. For loop from i = 1 to n
read score for execise i
read total for execise i

Keep summing total ans score read from user

3. Once Loop ends, print the score, total and percentage

END

Thanks, PLEASE COMMENT if there is any concern. PLEASE UPVOTE

WHILE LOOP

#include <iostream>

using namespace std;

int main() {

int n, score = 0,score_var, total_var, total = 0, i = 1;

cout << "How many exercises to input? ";

cin>>n;

while(i<=n){

cout<<"Score received for exercise "<<i<<": ";

cin>>score_var;

cout<<"Total points possible for exercise "<<i<<": ";

cin>>total_var;

score = score + score_var;

total = total + total_var;

cout<<endl<<endl;

++i;

}

cout<<"Your total is "<<score<<" out of "<<total<<", or "<<score*100.0/total<<" %"<<endl;

}