In Python, use only some or all of the following concepts: decision structures, repetition structures, functions, and files.Write a program that reads five test scores from a file called "grades.txt". The program should display a letter grade for each score and the average test score. Write the following functions in the program:grade_average. This function should accept five test scores as arguments and return the average of the scores.letter_grade. This function should accept a test score as an argument and return a letter grade for the score based on the following grading scale: ScoreLetter Grade90 - 100A80 - 89B70 - 79C60 - 69DBelow 60FThe grades.txt file should test all possible grades.

Python code: def grade_average(marks_lst): #function to find average of all the marks s =…

Answered: In Python, use only some or all of the…

Computer Networking: A Top-Down Approach (7th Edition)

7th Edition

ISBN:9780133594140

Author:James Kurose, Keith Ross

Publisher:James Kurose, Keith Ross

Chapter1: Computer Networks And The Internet

Section: Chapter Questions

Problem R1RQ: What is the difference between a host and an end system? List several different types of end...

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In Python, use only some or all of the following concepts: decision structures, repetition structures, functions, and files.

Write a program that reads five test scores from a file called "grades.txt". The program should display a letter grade for each score and the average test score. Write the following functions in the program:

grade_average. This function should accept five test scores as arguments and return the average of the scores.
letter_grade. This function should accept a test score as an argument and return a letter grade for the score based on the following grading scale: