More C... when will it end?

average.c

#include <stdio.h>

int main() {
	int age;
	int sum = 0;
	float avrg;
	int x;

	printf("I'm going to ask 10 people for their age and then find the average\n");
	printf("of their ages at the end, just for fun!\n\n");

	for(x = 0; x < 10; x++){
		printf("What is your age? ");
		scanf("%d", &age); // Accept a numeric input and push it to age (by ref)
		if(age < 5) {
			printf("Wow, you're very young!\n");
		} else if(age < 12) {
			printf("Oh, older now!\n");
		} else if(age < 20) {
			printf("A teenager? Party everyday!\n");
		} else {
			printf("Sorry, you're an adult now. No more partying for you!\n");
		}
		printf("\n");
		sum += age;
	}

	avrg = sum / 10;
	printf("The average age was: %f\n", avrg);

	return 0;
}