Test Average and Grade

prepare a program that asks the user to enter five test scores. The program should display a letter grade for each score and the average test score. Design the following functions in the program:

- calcAverage - This function should accept five test scores as arguments and return the average of the scroes.

- determineGrade - This function should accept a test score as an argument and return a letter grade for the score (as a string), based on the following grading scale:

Score Letter Grade

90-100 A

80-89 B

70-79 C

60-69 D

Below 60 F