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    Program 3. Write a program to calculate the average marks of three subjects.

                         Program3.py
                      File  Edit  Format  Run   Options   Window    Help

                      #Program to calculate the average marks of three subjects
                      Eng = float(input(" Enter English Marks: "))
                      Math = float(input(" Enter Math Marks: "))
                      Hindi = float(input(" Enter Hindi Marks: "))
                      avg=( Eng+ Math + Hindi)/3
                      print("Average is :", avg)

                     On running the above program, we get the following output:

                         Output

                      Enter English Marks: 90
                      Enter Math Marks: 95
                      Enter Hindi Marks: 80
                      Average is : 88.33333333333333

                                       Imagine, comments in Python are secret messages from a wise mentor. What advice
                                       or tips would you leave in your code for future programmers to discover?

                            Hashtag

                          #Python: Object-oriented high-level programming language
                          #IDLE: Stands for Integrated Development and Learning Environment

                          REVISIT

                       ▶   Interactive Mode and Script Mode are the two working mode in Python.
                       ▶   The input() function takes the user’s input while a program executes.
                       ▶   The print() function is used to display the content on the screen.
                       ▶   Variables are memory reference points where we store values which can be accessed or changed later.
                       ▶   A data type specifies the type of value a variable can contain.
                       ▶   Comments enable us to understand the way a program works.
                       ▶   Operators are special symbols which perform computation.

                                                                                                 Introduction to Python  143

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