{
        Assignment 1, Program 2
        name: "Gas mileage computer"
        by: Ben Weir
        Modified: Sept. 11, 1996

        this program gets information about a car trip
        and computes the total cost of gas needed for that
        trip.
}
program GasCost (input, output);

var
   distance,    {number of miles traveled}
   mpg,         {miles per gallon of the car}
   gas_price,   {price of gasoline}
   total_cost:  {total cost of trip}
   real;

begin
   Write('How many miles did you drive? ');               {get all the input}
   readln(distance);
   write('How many miles per gallon does your car get? ');
   readln(mpg);
   Write('How much does a gallon of gas cost? ');
   readln(gas_price);

   total_cost := (distance / mpg) * gas_price;  {perform calculation}

   writeln;                {print it out}
   writeln('Total cost: $', total_cost: 1: 2);

   write('Press enter');
   readln;
end.