Question

3. Write a program following the requirements below: (20 marks) (a) Write a function named average() that calculates and returns the average value of 3 single-precision floating-point numbers. (b) Include the function in a working program and test the functionality of the function average( ). Make sure your function is called from main() and correctly returns a value to main().

Answer 1

a)

The data type for single precision floating numbers in c++ is float. So we can solve the above questions with the float data type.

float average(float a,float b,float c)
{
float avg;

average=(a+b+c)/3;
return avg;
}

b)

Output-

#include <iostream>

using namespace std;

float average(float a,float b,float c)

{

float av;
av=(a+b+c)/3;

return av;

}

int main()

{

float a,b,c;

cout<<"Enter the three numbers:";

cin>>a>>b>>c;

cout<<"The average of the 3 numbers is:"<<average(a,b,c);

return 0;

}

Output-

C:\Users\rahul\Documents\average.exe Enter the three numbers:2 3 5 The average of the 3 numbers is:3.33333 Process returned 0 (0x0) execution time : 7.109 s Press any key to continue. ers is: