IGNOU BCS 131 2026 2027 - Calculate annual salary

Question

Calculate annual salary

08 Aug 2026

Answer :

Word Count : 1179

In C++, calculating annual salary is a simple but important programming problem that helps in understanding variables, data types, arithmetic operators, input, output, and basic program structure. Annual salary generally means the total amount of money an employee earns in one year. If the monthly salary of an employee is known, the annual salary can be calculated by multiplying the monthly salary by 12. The basic formula is: Annual Salary = Monthly Salary × 12 For example, if an employee receives a monthly salary of ₹25,000, the annual salary will be: Annual Salary = 25,000 × 12 Annual Salary = ₹3,00,000 In C++, this calculation can be performed using a variable for the monthly salary and another variable for the annual salary. The program takes the monthly salary as input from the user, multiplies it by 12, and displays the result. A simple C++ program for calculating annual salary is: ```cpp #include using namespace std; int main() { double monthlySalary, annualSalary; cout << "Enter monthly salary: "; cin >> monthlySalary; annualSalary = monthlySalary * 12; cout << "Annual Salary = " << annualSalary; return 0; } ``` In this program, `#include ` is used to provide input and output facilities. The `iostream` library contains objects such as `cin` and `cout`, which are commonly used for taking input and displaying output. The statement `using namespace std;` allows the program to use standard C++ objects such as `cout` and `cin` without writing `std::` before them. The `main()` function is the starting point of the C++ program. Program execution begins from this function. Two variables, `monthlySalary` and `annualSalary`, are declared using the `double` data type. The `double` data type is suitable for salary calculations because salary values may sometimes contain decimal values. For example, a monthly salary could be 28500.50. Using `double` allows such values to be stored accurately enough for normal salary calculations. The statement: ```cpp cout << "Enter monthly salary: "; ``` displays a message asking the user to enter the monthly salary. The statement: ```cpp cin >> monthlySalary; ``` takes the value entered by the user and stores it in the `monthlySalary` variable. The main calculation is performed by: ```cpp annualSalary = monthlySalary * 12; ``` Here, the multiplication operator `*` is used. The monthly salary is multiplied by 12 because there are twelve months in a year. The calculated value is stored in the `annualSalary` variable. Finally: ```cpp cout << "Annual Salary = " << annualSalary; ``` displays the calculated annual salary on the screen. Suppose the user enters: ```text Enter monthly salary: 30000 ``` The calculation performed by the program will be: ```text

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