Question

3. Write a C++ program that repeatedly inputs 50 positive integers that represent consumption of gas measured in gallons, one at a time. Use a loop to do the following steps: 1. Input the gas by calling a function named 'inputGas()' 'inputGas()' will not receive any parameters. It will input the gas and return it to the main function. 2. Convert the value of gallons to its liter equivalent by calling a function named 'convertToLiter'. 'convertToLiter' will receive an integer parameter that represents the gas quantity, 'convertToLiter' will convert the gallons to liter and return the liter value to the main function. Note that 1 gallon of liquid is equal to 3.785 liters. 3. Print both the gallons and the converted liters. 4. Accumulate all the liter values 5. After you finish with the above steps calculate and print the average liter. Main method, function calls and declarations

Answer 1

//In this, we can change the number of items by changing the "n" value.

// I took n=5 as an example.

//Please change the n value based on your requirement.

code:

1 #include <stdio.h> 2 #include <iostream> 3 using namespace std; 4 int inputGas() int val; cout<<"Enter the volume of gas:"<<"\n"; cin>>val; //get the input and return the value 10 return val; 11 } 12 int convertToLiter(int gas) 13- { double result; result=gas*3.785; 16 //convert from gallons to liters return result; 18 //return the liters 15 19} 22 20 int main() 21 - { int i,gas,n=5; 23 double sum=0,lit; for(i=0;i<n;i++) 25 //for n times 24 26 { 27 28 gas=inputGas(); lit=convertToLiter(gas);

sum=sum+lit; //Accumulate the liters cout<<"gallons :"<<gas<<"\t"; cout<<"Liters :"<<lit<<"\n"; //print the gallons and liters cout<<"The average liter is:"; int avg=sum/n; //average=sum/total number of items cout<<avg; //print the average return 0; 39 40 41 }

output:

Enter the volume of gas: 15 gallons :15 Liters :56 Enter the volume of gas: 10 gallons :10 Liters :37 Enter the volume of gas: gallons :5 Liters : 18 Enter the volume of gas: 20 gallons :20 Liters : 75 Enter the volume of gas: 100 gallons :100 Liters : 378 The average liter is: 112

//If any doubt post in comment section.