You must have 2 functions: one computes the average and the other finds the letter grade.The average function should return back a Real value and the letter grade function should return back a string. All input and output must occur in main().Only find and display the letter grade for the average, not each test score. Just the algorithm in pseudo code 7. Test Average and GradeWrite a program that asks the user to enterfive test scores. The program should displaya letter grade for each score and the averagetest score. Design the following functions inthe program:. calcAverage-This function should ac-cept five test scores as arguments andreturn the average of the scores.determineGrade –This function shouldaccept a test score as an argument andreturn a letter grade for the score (as aString), based on the following gradingscale:ScoreLetter Grade90-100A80-89В70-79C60-69DBelow 60

A) Calculate Average def calcAverage(score1, score2, score3, score4, score5): return (score1 + score2 + score3 + score4 + score5) / 5def determineGrade(score): if 90 <= score <= 100: return "A" elif 80 <= score <= 89: return "B" elif 70 <= score <= 79: return "C" elif 60 <= score <= 69: return "D" else: return "F"def getValidScore(): score = input("Enter score: ") while not isValidScore(score): score = input("Enter valid score: ") return int(score)def isValidScore(s): isValid = False try: num = int(s) if not s.isdigit(): raise ValueError() elif num < 0 or num > 100: raise ValueError() else: isValid = True except ValueError: isValid = False return isValidif __name__ == "__main__": sc1 = getValidScore() sc2 = getValidScore() sc3 = getValidScore() sc4 = getValidScore() sc5 = getValidScore() print(sc1, " grade is ", determineGrade(sc1)) print(sc2, " grade is ", determineGrade(sc2)) print(sc3, " grade is ", determineGrade(sc3)) print(sc4, " grade is ", determineGrade(sc4)) print(sc5, " grade is ", determineGrade(sc5)) print("Average score is: ", calcAverage(sc1, sc2, sc3, sc4, sc5))OUTPUT:-B) Determine Grade def calcAverage(score1, score2, score3, score4, score5): return (score1 + score2 + score3 + score4 + score5) / 5def determineGrade(score): if 90 <= score <= 100: return "A" elif 80 <= score <= 89: return "B" elif 70 <= score <= 79: return "C" elif 60 <= score <= 69: return "D" else: return "F"if _name_ == "_main_": print("Enter five scores: ") sc1 = int(input()) sc2 = int(input()) sc3 = int(input()) sc4 = int(input()) sc5 = int(input()) print(sc1, " grade is ", determineGrade(sc1)) print(sc2, " grade is ", determineGrade(sc2)) print(sc3, " grade is ", determineGrade(sc3)) print(sc4, " grade is ", determineGrade(sc4)) print(sc5, " grade is ", determineGrade(sc5)) print("Average score is: ", calcAverage(sc1, sc2, sc3, sc4, sc5))OUTPUT:-