C program that Display the sum and average of three numbers

#include <stdio.h>
#include <stdlib.h>

int main()
{
    float a,b,c,d,e;
printf("\n\t enter the first number = ");
scanf("%f",&a);
printf("\n\t enter the second number = ");
scanf("%f",&b);
printf("\n\t enter the third number = ");
scanf("%f",&c);
e=a+b+c;
printf("\n\tthe sum of three number is = %.2f ",e);
d=(a+b+c)/3;
printf("\n\t the average of three number is = %.2f ",d);
    return 0;
}

THE OUTPUT

enter the first number = 10

enter the second number = 19

enter the third number = 20

the sum of three number is = 49.00

the average of three number is = 16.33