Question

write the function of calculating the average value of r5 to r10​

Answer 1

#include <stdio.h>

int main() {

int n, i;

float num[100], sum = 0.0, avg;

printf("Enter the numbers of elements: ");

scanf("%d", &n);

while (n > 100 || n < 1) {

printf("Error! number should in range of (1 to 100).\n");

printf("Enter the number again: ");

scanf("%d", &n);

}

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

printf("%d. Enter number: ", i + 1);

scanf("%f", &num[i]);

sum += num[i];

}

avg = sum / n;

printf("Average = %.2f", avg);

return 0;

}