Question

Write a program that calculates the average rainfall for three months. The program should ask the user to enter the name of each month, such as June or July, and the amount of rain (in inches) that fell each month. The program should display a message similar to the following: The average rainfall for June, July, and August is 6.72 inches.

Answer 1

Answer:

// program in C++.

#include <bits/stdc++.h>

using namespace std;

// main function

int main()

{

   // string array

   string m[3];

   // array to store rainfall

   double rainfall[3];

   // variables

   double avg_rainfall,sum=0;

   

   for(int i=0;i<3;i++)

   {

       cout<<"Enter name of month "<<i+1<<" :";

       // read month name

       cin>>m[i];

       cout<<"Enter rainfall (inches)  in month "<<i+1<<" :";

       // read rainfall

       cin>>rainfall[i];

       // sum of rainfall

       sum+=rainfall[i];

   }

   // Average rainfall

   avg_rainfall=sum/3;

   // print Average rainfall

   cout<<"Average rainfall for "<<m[0]<<","<<m[1]<<","<<m[2]<<" is "<<avg_rainfall<<" inches."<<endl;

return 0;

}

Explanation:

Create string array "m" to store name of month and double array "rainfall" to store rainfall. Read name of 3 months and rainfall in that month.Find the sum of all the rainfall  and the average rainfall.Print the average rainfall of 3 months.

Output:

Enter rainfall (inches)  in month 2 :45                                                                                    

Enter name of month 3 :july                                                                                                

Enter rainfall (inches)  in month 3 :43                                                                                    

Average rainfall for may,june,july is 42.6667 inches.