Answer:
// C program to find sum and average of 10 elements.
#include <stdio.h>
// main function
int main(void) {
// array
double arr[10];
// variables
double average,sum=0;
int i;
// ask to enter 10 elements of the array
printf("Enter 10 elements of the array:");
for(i=0;i<10;i++)
{
// read elements of the array
scanf("%lf", &arr[i]);
// calculate the sum of elements
sum=sum+arr[i];
}
// fint the average
average=sum/10;
// print sum
printf("Sum of 10 elements of the array is:%f ",sum);
// print average
printf("\nAverage of 10 elements of the array is:%f ",average);
return 0;
}
Explanation:
Create an array of size 10.Then read 10 values from user and store them into array.Find the sum of 10 elements of the array and assign it to variable "sum". Find the average by dividing sum with 10.Print the sum and average.
Output:
Enter 10 elements of the array:3 2 4 5 1 4 8 9 12 10
Sum of 10 elements of the array is:58.000000
Average of 10 elements of the array is:5.800000
