Question

a. Write a program that will compute the average of any number of test scores
using a do-while loop.
b. Revise the code to employ a while loop.
c. Revise the code to employ a for loop.

Answer 1

Since you have not mentioned the language of your preference, I am providing the code in C++.

a)

CODE

#include <iostream>

using namespace std;

int main() {

double scores[] = {56, 67, 99, 91, 87, 88};

int n = 6;

double average = 0;

int i = 0;

do {

average += scores[i];

i ++;

} while(i < n);

cout << "Average = " << average/n;

}

b)

CODE

#include <iostream>

using namespace std;

int main() {

double scores[] = {56, 67, 99, 91, 87, 88};

int n = 6;

double average = 0;

int i = 0;

while(i < n) {

average += scores[i];

i ++;

}

cout << "Average = " << average/n;

}

c)

CODE

#include <iostream>

using namespace std;

int main() {

double scores[] = {56, 67, 99, 91, 87, 88};

int n = 6;

double average = 0;

for (int i=0; i<n; i++) {

average += scores[i];

}

cout << "Average = " << average/n;

}