Python Program to Calculate Total Marks Percentage and Grade of a Student

In this article, you will learn how to find the Total, Average, Percentage, and Grade of a student in the Python language.

 

Example

 

You should have the knowledge of the following topics in python programming to understand this program:

• Objective Python
• Python Functions
• Python If statement
• Python input() function
• Python print() function

 

Standard Formula

Total = marks1 + marks2 + marks3 + marks4 + marks5

Average = Total / 5.0

Percentage = (Total / 500.0) x 100

 

Where marks1, marks2, marks3, marks4, and marks5 are the marks of five subjects.

 

In this article, we solve this problem in four methods:

1. Using the normal calculation
2. Using the function
3. Using the nested If-else
4. Using the Class and Object

Python Program to Calculate Total Marks Percentage and Grade of a Student

1. Create the 5 input variables named subject_1, subject_2, subject_3, subject_4, subject_5 to take input marks of the 5 subjects.
2. Then make sum of these marks and assigned it to the total variable.
3. To calculate the average total value divided by 5.
4. To calculate the percentage total multiplied by 500 and divided by 5.
5. After calculating the average compare the average value with some values to find the grade:
   1. If average >= 90 then Grade - A
   2. If average >= 80 and average < 90 then Grade - B
   3. If average >= 70 and average < 80 then Grade - C
   4. If average >= 60 and average < 70 then Grade - D
   5. If average < 60 then Grade - E

 

# Python Program to Calculate Total Marks Percentage and Grade of a Student
print("Enter the marks of five subjects::")

subject_1 = float (input ())
subject_2 = float (input ())
subject_3 = float (input ())
subject_4 = float (input ())
subject_5 = float (input ())

total, average, percentage, grade = None, None, None, None

# It will calculate the Total, Average and Percentage
total = subject_1 + subject_2 + subject_3 + subject_4 + subject_5
average = total / 5.0
percentage = (total / 500.0) * 100

if average >= 90:
    grade = 'A'
elif average >= 80 and average < 90:
    grade = 'B'
elif average >= 70 and average < 80:
    grade = 'C'
elif average >= 60 and average < 70:
    grade = 'D'
else:
    grade = 'E'

# It will produce the final output
print ("\nThe Total marks is:   \t", total, "/ 500.00")
print ("\nThe Average marks is: \t", average)
print ("\nThe Percentage is:    \t", percentage, "%")
print ("\nThe Grade is:         \t", grade)

Run Program

Output

 

Explanation

Average: we take the marks of five subjects as input after that the sum of these marks is divided by 5 then It will return the average value of the marks.

Percentage: we made a division of the sum of the user's marks by 500 and then multiplied by 100 then It will return the percentage value of the marks.

Grade: we compared the value of the Average marks with this range of marks to find the Grade of students like:

 

If  Average marks >= 90 then Its Grade is 'A'

If Average marks >= 80 and < 90 then Its Grade is 'B'

If Average marks >= 70 and < 80 then Its Grade is 'C'

If Average marks >= 60 and < 70 then Its Grade is 'D'

If Average marks < 60 then Its Grade is 'E'

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Python Program to Find Grade and Average Marks of a Student Using Function

1. There is used same calculation as used above on the program.
2. In this program, we created a function named CalcPercentGrade() with 5 arguments in marks of the students.
3. After the same calculation process, It will print the final output of the program like Total marks, Average, Percentage, and Grade of the student.

 

# Python Program to Find Grade and Average Marks of a Student Using Function

# Custom function to Display Percentage & Grade
def CalcPercentGrade (S_1, S_2, S_3, S_4, S_5):
    # It will calculate the Total, Average and Percentage
    total = S_1 + S_2 + S_3 + S_4 + S_5
    average = total / 5.0
    percentage = (total / 500.0) * 100

    if average >= 90:
        grade = 'A'
    elif average >= 80 and average < 90:
        grade = 'B'
    elif average >= 70 and average < 80:
        grade = 'C'
    elif average >= 60 and average < 70:
        grade = 'D'
    else:
        grade = 'E'

    # It will produce the final output
    print ("\nThe Total marks is:   \t", total, "/ 500.00")
    print ("\nThe Average marks is: \t", average)
    print ("\nThe Percentage is:    \t", percentage, "%")
    print ("\nThe Grade is:         \t", grade)


# Driver function to Run this Program
print("Enter the marks of five subjects::")

subject_1 = float (input ())
subject_2 = float (input ())
subject_3 = float (input ())
subject_4 = float (input ())
subject_5 = float (input ())

total, average, percentage, grade = None, None, None, None

# It will produce the final output
CalcPercentGrade (subject_1, subject_2, subject_3, subject_4, subject_5)

Run Program

Output

 

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Python Program to Calculate Total Marks Percentage and Grade of a Student using Nested If else

1. In this program, we applied nested if-else statements to make comparisons of student marks and find the grade of students.
2. Then It will be returned the final output of the program same as the above program.

 

# Python Program to Calculate Total Marks Percentage and Grade of a Student using Nested If else

print("Enter the marks of five subjects::")

subject_1 = float (input ())
subject_2 = float (input ())
subject_3 = float (input ())
subject_4 = float (input ())
subject_5 = float (input ())

total, average, percentage, grade = None, None, None, None

# It will calculate the Total, Average and Percentage
total = subject_1 + subject_2 + subject_3 + subject_4 + subject_5
average = total / 5.0
percentage = (total / 500.0) * 100

if average >= 90:
    grade = 'A'
else:
    if average >= 80 and average < 90:
        grade = 'B'
    else:
        if average >= 70 and average < 80:
            grade = 'C'
        else:
            if average >= 60 and average < 70:
                grade = 'D'
            else:
                grade = 'E'


# It will produce the final output
print ("\nThe Total marks is:   \t", total, "/ 500.00")
print ("\nThe Average marks is: \t", average)
print ("\nThe Percentage is:    \t", percentage, "%")
print ("\nThe Grade is:         \t", grade)

Run Program

---

Python Program to Calculate Total Marks Percentage and Grade of a Student Using Class

1. To make this program we created a class named StudentData, and its properties like Total, Average, Percentage, Marks, and MaxMarks.
2. After that created some methods: CalcMaxMarks(), CalcTotal(), CalcAvg(), CalcPercentage(), CalcGrade(), and CalcResult().
3. These created methods will return the desired outputs.

 

# Python Program to Calculate Total Marks Percentage and Grade of a Student Using Class

class StudentData:
    def __init__(self):
        self.Total = 0.00
        self.Average = 0.00
        self.Percentage = 0.00
        self.Marks = []
        self.MaxMarks = 0.00

    def main(self):
        print("Enter the marks of five subjects::")

        for i in range(5):
            self.Marks.append( float (input ()))

    def CalcMaxMarks (self):
        return len (self.Marks) * 100

    def CalcTotal (self):
        self.Total = 0
        for i in self.Marks:
            self.Total += i
        return self.Total

    def CalcAvg (self):
        self.Average = self.Total / len (self.Marks)
        return self.Average

    def CalcPercentage (self):
        return (self.Total * 100) / (len (self.Marks) * 100)

    def CalcGrade (self):
        Grade = None
        if self.Average >= 90:
            Grade = 'A'
        elif self.Average >= 80 and self.Average < 90:
            Grade = 'B'
        elif self.Average >= 70 and self.Average < 80:
            Grade = 'C'
        elif self.Average >= 60 and self.Average < 70:
            Grade = 'D'
        else:
            Grade = 'E'
        return Grade

    def CalcResult (self):
        c = 0
        for i in self.Marks:
            if i >= 40:
                c += 1

        if c == len (self.Marks):
            return 'Passed'
        else:
            return 'Failed'


# It will create instance of the StudentData class
StudentData = StudentData()

StudentData.main()

# It will produce the final output
print ("\nThe Total marks is:   \t", StudentData.CalcTotal(), "/", StudentData.CalcMaxMarks())
print ("\nThe Average marks is: \t", StudentData.CalcAvg())
print ("\nThe Percentage is:    \t", StudentData.CalcPercentage(), "%")
print ("\nThe Grade is:         \t", StudentData.CalcGrade())
print ("\nThe Result is:        \t", StudentData.CalcResult())

Run Program

Output

 

 

Explanation

In the above program, we have taken some objects & methods to calculate and store the output values, It will be returned at end of the program:

 

Used Objects in the Program:

1. Total - To store the sum of total marks
2. Average - To store an average of marks
3. Percentage - To sore the percentage value of marks
4. Marks - To store the marks of the given subject
5. MaxMarks - To calculate maximum marks

 

Used Methods in the Program:

1. main() - it's a driver method
2. CalcMaxMarks() - it will calculate maximum marks
3. CalcTotal() - It will calculate the total marks
4. CalcAvg() - It will calculate the average of the marks
5. CalcPercentage() - It will calculate the percentage of the total marks
6. CalcGrade() - It will calculate the Grade of the student as per marks
7. CalcResult() - It will define student passed or failed on behalf of their own marks

 

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