Marks and grades in Python.

marks = [78, 92, 65, 88, 71]

def grade(percent):
    if percent >= 90:
        return "A"
    elif percent >= 75:
        return "B"
    elif percent >= 60:
        return "C"
    return "D"

total = sum(marks)
average = total / len(marks)
print("Total:", total)
print("Average:", round(average, 1))
print("Grade:", grade(average))
print("Highest:", max(marks), "Lowest:", min(marks))
print("Sorted:", sorted(marks))

Total: 394
Average: 78.8
Grade: B
Highest: 92 Lowest: 65
Sorted: [65, 71, 78, 88, 92]