- C++ Programming Examples
- C++ Programming Examples
- C++ Hello World
- C++ Get Input
- C++ Print Integer
- C++ Add Two Numbers
- C++ Add Sub Mul Div
- C++ Add Digits
- C++ Find Average Perc
- C++ Find Arithmetic Mean
- C++ Sum of n Natural Numbers
- C++ Sum of n Numbers
- C++ Area Perimeter of Square
- C++ Area Perimeter of Rectangle
- C++ Area Perimeter of Triangle
- C++ Area Circum of Circle
- C++ Find Simple Interest
- C++ Fahrenheit to Celsius
- C++ Celsius to Fahrenheit
- C++ Print Prime Numbers
- C++ Reverse a Number
- C++ Swap Two Numbers
- C++ Print Multiplication Table
- C++ Find Factorial of Number
- C++ Find Factors of Number
- C++ Find HCF & LCM
- C++ Make Calculator
- C++ Count Digits in Number
- C++ Sum of First & Last Digit
- C++ Product of Digits of Number
- C++ Sum of Squares of Digits
- C++ Interchange Digits of Number
- C++ if else Programs
- C++ Check Even or Odd
- C++ Check Prime or Not
- C++ Check Alphabet or Not
- C++ Check Vowel or Not
- C++ Check Leap Year or Not
- Check Reverse equal Original
- C++ Check Perfect Number
- C++ Check Palindrome or Not
- C++ Check Armstrong or Not
- C++ Divisibility Test
- C++ Find Wage of Labor
- C++ Find Discounted Price
- C++ Find Shipping Charge
- C++ Find Telephone Bills
- C++ Calculate Student Grade
- C++ Largest of Two Numbers
- C++ Largest of Three Numbers
- C++ Number Conversion
- C++ Decimal to Binary
- C++ Decimal to Octal
- C++ Decimal to Hexadecimal
- C++ Binary to Decimal
- C++ Binary to Octal
- C++ Binary to Hexadecimal
- C++ Octal to Decimal
- C++ Octal to Binary
- C++ Octal to Hexadecimal
- C++ Hexadecimal to Decimal
- C++ Hexadecimal to Binary
- C++ Hexadecimal to Octal
- C++ Pattern Programs
- C++ Pattern Programs
- C++ Print Diamond Pattern
- C++ Print Floyd's Triangle
- C++ Print Pascal's Triangle
- C++ Array Programs
- C++ 1D Array Program
- C++ Linear Search
- C++ Binary Search
- Find Largest Element in Array
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- Find Second Largest Element
- Find Second Smallest Element
- C++ Sum of All Elements
- C++ Multiply All Elements
- C++ Element on Even Position
- C++ Element on Odd Position
- C++ Print Even Numbers in Array
- C++ Print Odd Numbers in Array
- C++ Count Even/Odd Numbers
- C++ Sum of Even/Odd Numbers
- C++ Count Positive Negative Zero
- C++ Reverse an Array
- C++ Insert Element in Array
- C++ Delete Element from Array
- C++ Merge two Arrays
- C++ Bubble Sort
- C++ Selection Sort
- C++ Insertion Sort
- C++ Common Elements
- C++ 2D Array Programs
- C++ Add Two Matrices
- C++ Subtract Two Matrices
- C++ Transpose Matrix
- C++ Multiply Two Matrices
- C++ 3D Array Programs
- C++ String Programs
- C++ Print String
- C++ Find Length of String
- C++ Compare Two Strings
- C++ Copy String
- C++ Concatenate String
- C++ Reverse a String
- C++ Delete Vowels from String
- C++ Delete Word from String
- C++ Count Character in String
- C++ Count Word in String
- C++ Frequency of Word
- C++ Remove Spaces from String
- C++ Sort a String
- C++ Uppercase to Lowercase
- C++ Lowercase to Uppercase
- C++ Swap Two Strings
- C++ Check Anagram or Not
- C++ Capitalize All Words in String
- C++ Capitalize Specific Character
- C++ Get Numbers from String
- C++ File Programs
- C++ Read a File
- C++ Write Content to File
- C++ Append Data in File
- C++ Read & Display File
- C++ Copy a File
- C++ Merge Two Files
- Count Characters, Words in File
- C++ Capitalize All Words in File
- C++ List Files in Directory
- C++ Delete a File
- C++ Encrypt & Decrypt a File
- C++ Misc Programs
- C++ Print ASCII Value
- C++ Add Binary Numbers
- C++ Generate Random Numbers
- C++ Print Smiling Face
- C++ Days into Years, Months
- Add Two Numbers using Pointer
- C++ Print Fibonacci Series
- Generate Armstrong Numbers
- C++ Find nCr and nPr
- C++ Get IP Address
- C++ Print Date/Time
- C++ Shutdown, Restart Computer
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C++ Program to Calculate Average, Percentage Marks
Here you will learn and get code on finding the average and percentage mark of a student based on the marks entered by user in C++. You will go through the following three programs over here:
- Find Average & Percentage Marks in 5 Subjects
- Allow user to define number of subjects and maximum mark along with marks obtained in each subject
- Find Average & Percentage Marks using user-defined Function
How to Find Average Mark ?
To find average marks in n number of subjects, just add all the marks and divide it by n. For example, to find average mark with marks obtained in three subjects say 10, 20, 30, then it will be:
avg = (10+20+30)/3 = 60/3 = 20
How to Find Percentage Mark ?
To find percentage mark, use following formula:
perc = ((marks obtained)/(total marks))*100
For example, if marks of three subjects are 10, 11, 12 out of 25. That is, the maximum mark is 25. And out of 25, the student got 10, 11, 12 in 3 subjects. Therefore, his/her percentage mark can be calculated as:
perc = ((10+11+12)/(25*3))*100 = (33/75)*100 = (0.44)*100 = 44
Therefore, the percentage mark will be 44 percentage. Now let's move on to the program.
Find Average & Percentage Marks of Student in C++
To calculate average and percentage marks (in 5 subjects) of a student in C++ programming, you have to ask from user to enter marks obtained in 5 subjects.
Now place the summation result of 5 subject's mark in a variable say sum and place sum/5 in a variable say avg (average of 5 subjects). Then place sum/500*100 in a variable say perc (percentage marks), then display the result on the screen as shown here in the following program.
#include<iostream> using namespace std; int main() { int i, mark[5]; float sum=0, avg, perc; cout<<"Enter Marks obtained in 5 Subjects: "; for(i=0; i<5; i++) { cin>>mark[i]; sum = sum+mark[i]; } avg = sum/5; perc = (sum/500)*100; cout<<"\nAverage Marks = "<<avg; cout<<"\nPercentage Marks = "<<perc<<"%"; cout<<endl; return 0; }
This program was build and run under Code::Blocks IDE. Here is its sample run:
Now supply marks obtained in 5 subjects say Physics, Chemistry, Math, English, CS. Each mark should be
entered out of 100. After supplying marks say 78, 92, 83, 81, 89, press ENTER
key to see the
following output:
Allow User to Define Maximum Mark
This program is same as of previous one. But there are two extra features added to it. The first one is, user is allowed to enter the number of subject, that how many subject running for his/her course. And the second is, user is allowed to enter maximum mark. Rest of the things will be same:
#include<iostream> using namespace std; int main() { int i, n; float tot, arr[10], sum=0, avg, perc; cout<<"Enter Number of Subjects: "; cin>>n; cout<<"\nEnter Total Marks: "; cin>>tot; cout<<"\nEnter Marks obtained in "<<n<<" Subjects: "; for(i=0; i<n; i++) { cin>>arr[i]; sum = sum+arr[i]; } tot = tot*n; avg = sum/n; perc = (sum/tot)*100; cout<<"\nAverage Marks = "<<avg; cout<<"\nPercentage Marks = "<<perc<<"%"; cout<<endl; return 0; }
Here is its sample run, with user input:
- 3 as Number of Subjects
- 25 as Total Marks
- 10, 11, 12 as Marks Obtained in 3 Subjects
Press ENTER
key after supplying the inputs as given above, here is the output you will see:
Using user-defined Function
This is the last program that also find and prints average and percentage marks. The only difference is, this program finds average and percentage marks using function namely averageMark() and percMark(). To learn more about function in C++, you can refer to its separate tutorial.
#include<iostream> using namespace std; float averageMark(float [], int); float percMark(float [], int); int main() { int i, n; float arr[10], avg, per; cout<<"Enter Number of Subjects: "; cin>>n; cout<<"\nEnter Marks obtained in "<<n<<" Subjects: "; for(i=0; i<n; i++) cin>>arr[i]; avg = averageMark(arr, n); per = percMark(arr, n); cout<<"\nAverage Marks = "<<avg; cout<<"\nPercentage Marks = "<<per<<"%"; cout<<endl; return 0; } float averageMark(float arr[], int n) { int i; float sum=0; for(i=0; i<n; i++) sum = sum+arr[i]; return (sum/n); } float percMark(float arr[], int n) { float perc; perc = averageMark(arr, n); return perc; }
Here is its sample run:
Now enter the number of subjects running in your institute for your course. For example, if you're studying
a course that includes 6 subjects, then enter 6. Since, there are 6 subjects running to your course, therefore enter
marks obtained in all the 6 subjects (out of 100 each) and press ENTER
key to see the average and percentage
marks as shown in the output given below:
Same Program in Other Languages
- C Calculate Average Percentage Marks
- Java Calculate Average Percentage
- Python Calculate Average Percentage
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