C :

#include<stdio.h>
#include<stdlib.h>
int main()
{	float n,s;
	scanf("%f",&s);
	if(s<=15)
	{	
		n=s/1.5;
		printf("%.2f",n);
	}
	if(s>15)
	{
		n=(s-15)/2.5+10;
	printf("%.2f",n);
	}
}
	

C++ :

#include<iostream>
#include <iomanip> 
using namespace std;
int main(){
	double m,n;
	cin>>m;
	if(m<=15){
		n=m/1.5; 
	}else{
		n=(m-15)/2.5+10;
	}
	cout<<fixed<<setprecision(2)<<n; 
	return 0;
}

Pascal :

var a,s:real;
begin
  read(a);
  if a<=15 then s:=a/1.5;
  if a>15 then s:=(a-15)/2.5+10;
  writeln(s:0:2);
end.

Java :

import java.util.Scanner;

public class Main{
	public static void main(String[] args){
		Scanner sc=new Scanner(System.in);
		int a=sc.nextInt();
		double b = 0;
		if (a<=15) {
			b=a/1.5;
		}
		if (a>15){
			b=10+(a-15)/2.5;
		}
			System.out.printf("%.2f",b);
	}
}

Python :

n=int(input())
if n<=15:
    print('%.2f' %(n/1.5))
else :
    print('%.2f' %(10+(n-15)/2.5))