Steve Bradford

/* This program calculates the average miles per gallon for 3 tanks.
   The average miles per gallon is calculated individually and overall
   for the 3 tanks.
*/


#include <stdio.h>



int main()
{

    //Floating point variables for storing tank values
    float tank1Gals, tank2Gals, tank3Gals, tank1Miles, tank2Miles, tank3Miles, sumGals, sumMiles;

    //Read in information for tank 1
    printf("Enter the number of gallons used for tank #1:\n");
    scanf("%f", &tank1Gals);

    sumGals = tank1Gals;  //set initial gallon sum

    printf("Enter the number of miles driven:\n");
    scanf("%f", &tank1Miles);

    sumMiles = tank1Miles;  //set initial mileage sum

    printf("*** The miles per gallon for this tank is %0.2f\n", tank1Miles/tank1Gals);  //print mpg to two decimal places

    //Read in information for tank 2
    printf("Enter the number of gallons used for tank #2:\n");
    scanf("%f", &tank2Gals);

    sumGals = sumGals + tank2Gals;

    printf("Enter the number of miles driven:\n");
    scanf("%f", &tank2Miles);

    sumMiles = sumMiles + tank2Miles;

    printf("*** The miles per gallon for this tank is %0.2f\n", tank2Miles/tank2Gals); //print mpg to two decimal places

    //Read in information for tank 3
    printf("Enter the number of gallons used for tank #3:\n");
    scanf("%f", &tank3Gals);

    sumGals = sumGals + tank3Gals;

    printf("Enter the number of miles driven:\n");
    scanf("%f", &tank3Miles);

    sumMiles = sumMiles + tank3Miles;

    printf("*** The miles per gallon for this tank is %0.2f\n\n", tank3Miles/tank3Gals); //print mpg to two decimal places

    //Print overall avg mpg by dividing sumMiles by sumGals
    printf("Your overall average miles per gallon for three tanks is %0.2f\n", sumMiles/sumGals);

    printf("Thanks for using the program.\n");


    return 0;
}