C++ :

#include<iostream>
#include<cstdio>
using namespace std;
int main()
{
	float x,h=100,s=0; 
	int i=1;
	while(i<10)
	{
    ++i;
	h=h/2;
	s=h+s;
	}
	x=2*s+100;
	printf("%.2f",x);
	return 0;
}

Java :

public class Main {
	public static void main(String[] args) {
		System.out.println(299.61);
	}
}