The other day, I wrote my diary of the title "I can never resolve an arithmetical question that she cannot resolve."

In addition, I also wrote "I am afraid that I am just a string telephone. I read the suggested answer the prep school provides, and I tell her my interruption only. "

Now I don't work even as "string telephone"

"I can't understand how to resolve a question, even if reading the suggested answer"

I have the acute feeling, but the descriptions of collection of the past questions are not easy.

Who thinks that I can understand such a difficult question by the ambiguous description?

In particular, "combination question" is the worst for me. I can do anything if I could not find the pattern rules.

So, what this poor father does next is trying to use computer with programming.

#include 
#include 
 
int main ()
{
  int a,b,c,count=0;
 
  for (a=1; a<8; a++){
 
	for(b=1; b<8; b++){
 
	  for(c=1; c<8; c++){
 
		if ((a != b) && (a != c)&& (b != c)){
 
		  if (9.0 * 8.0 / (double)a + (double)b -(double)c > 75.0)
			printf("P1: %d,%d,%d\n",a,b,c);
 
		  if (9.0 * 8.0 / (double)a - (double)b + (double)c > 75.0)
			printf("P2: %d,%d,%d\n",a,b,c);
 
		  if (9.0 * 8.0 + (double)a - (double)b / (double)c > 75.0)
			printf("P3: %d,%d,%d\n",a,b,c);
 
		  if (9.0 * 8.0 + (double)a / (double)b - (double)c > 75.0)
			printf("P4: %d,%d,%d\n",a,b,c);
 
		  if (9.0 * 8.0 - (double)a + (double)b / (double)c > 75.0)
			printf("P5: %d,%d,%d\n",a,b,c);
 
		  if (9.0 * 8.0 - (double)a / (double)b + (double)c > 75.0)
			printf("P6: %d,%d,%d\n",a,b,c);
		}
	  }
	}
  }
}

(Please contact me if you know that when and what school set questions( I am sorry but I don't give you anything) )

It is natural that all answers are going to be derived from the computer's round robin competition.

This "poor father" leads the solving method from the computer's answers, and gives his daughter the method after that. How helpless he is.

-----

Herein,

"Any method is good if we could resolve a question"

You can see the engineer's stance of "spot solution's problem-oriented"

If you are a mathematician who engages in solution methods, you will get mad with me.