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How Many Calories? A bag of cookies holds 30 cookies. The calorie information on the bag claims that there are 10 "servings" in the bag and that a serving equals 300 calories. Write a program that asks the user to input how many cookies he or she actually ate and then reports how many total calories were consumed.

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Answer:

// program in C++.

#include <bits/stdc++.h>

using namespace std;

// main function

int main()

{

   // Constant Variables

   const int c_per_bag = 30,

             ser_per_bag = 10,

             cal_per_ser = 300;

   // Variables

   float c_eaten,

         ser_eaten,

         cal_consumed,

         cookies_per_serving = c_per_bag / ser_per_bag;

   cout << "How many cookies eaten? ";

   // read cookies eaten

   cin >> c_eaten;

   // find number of servings

   ser_eaten = c_eaten / cookies_per_serving;

   // find  total caloires consumed

   cal_consumed = ser_eaten * cal_per_ser;

// print cookies eaten

   cout << "Number of cookies eaten = "<<c_eaten<<endl;

// print calories consumed

   cout << "Number of calories consumed = "<<cal_consumed<<endl;

   return 0;

}

Explanation:

Find the number of servings in a bag and calories consumed in one servings.Read  the number of cookies eaten by user.Then find the eaten servings by dividing cookies eaten with cookies per servings.Then find the calories consumed by multiply eaten servings with calories per servings.Print the eaten cookies and calories  consumed.

Output:

How many cookies eaten? 25                                                                                                

Number of cookies eaten = 25                                                                                              

Number of calories consumed = 2500

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