Question

3. (a) write a value-returning function with appropriate parameter(s) to do the following: the function recieves a number and determines whether the number is over 2.5. it return the number if the the number is over 2.5, otherwise return false.

(b) consider following : double gpq; cin >> gpa; write the code to call the function in (a) above to determine whether the number is over 2.5. if it is display a message indicating so, otherwise display a message "the number is not in range"

please answer separately part a and b, thanks

Answer 1

3(a). sol :

#include <iostream>
using namespace std;

double determine(double n) // Function which determines whether number is over 2.5
{
if(n>2.5)
return n;
else
return false;
}

3(b). sol :

#include <iostream>
using namespace std;

int main()
{
double gpq, o;
cout<<"enter the number"<<endl;
cin>>gpq;
o = determine(gpq); // calling the determine function to check whether number is greater than 2.5
if(o == gpq) // If o has the same value as gpq then it is in the range else it's not
cout<<"The number is over 2.5"<<endl;
else
cout<<"The number is not in the range"<<endl;
return 0;
}