Chapter 63: Easy Problem Solving

Ying Zheng and the others suddenly came back to their senses, especially Ying Zheng, who immediately looked at the answer in his hand.

"There were 12 birds in the first tree, 9 birds in the second tree and 3 birds in the third tree. Sir, is Zhao Su's answer correct? Ying Zheng asked.

Qin An bowed his head and said, "Very correct. However, it takes too long, and if it takes such a long time to answer the exam tomorrow, then the exam will definitely not be passed, let alone excellent, or even a full score.

And I looked at the paper on which you made the draft, and found that you used the stupidest method, drawing three trees, one number at a time, how much time is it? ”

"Is there an easier way, sir?" Fusu asked.

Gongzi Gao also said: "Mr. Dissatisfaction, I'm also solving the problem like this, I really can't think of a better way." ”

Li Xiao and Meng Chongde looked at each other, and finally said at the same time: "We are the same. ”

Qin An sighed and said, "I knew it would be like this, what you think will be just a rough understanding, but you can't apply it flexibly."

Isn't this question a question, wait for the 4 birds in the first tree to fly to the second tree, and then the 5 birds in the second tree fly to the third tree, and then the number of birds in the three trees will be the same.

The crux of the matter is that this is the same, the same quantity. Then there is only one number.

So it's easy to get a number, 8.

Lesson 3 The rest is that the second tree flies past 5 birds to become 8, so as long as 8 minus 5, we can easily know that there are 3 birds on the third tree.

So now we have to add these 5 birds to the second tree, 8 plus 5 equals 13, and the reason why there are 13 birds on the second tree is because there are 4 birds that flew from the first tree.

So the second tree is 13 minus 4 equals 9, which is 9 birds. The first tree is 8 plus 4 equals 12, 12 small birds.

A: Originally, there were 12 birds on the first tree, 9 birds on the second tree, and 3 birds on the third tree. ”

When everyone heard this, they couldn't help but admire in their hearts, it was so easy to solve the problem?

Fusu was even more excited in his heart.

"Wonderful." Ying Zheng couldn't help but say, "Mr.'s method of solving the problem is really wonderful, so that this problem can be easily solved." ”

Li Si admired: "It turns out that you can solve the problem like this, which is an eye-opener." ”

Meng Tian sighed and said: "It's a pity that Mr. came up with the question of a bird, if you can use the military as the topic." ”

"Military questions? This is not good, school textbooks never have military questions, and the profession of a soldier is sacrosanct.

Soldiers have the responsibility of defending their homes and defending the country, and they can spill their blood for the sake of the people and for the housekeepers, so the whole country does not use the military as the theme.

If there is, then only military schools, and they are military men after graduation. Qin An explained.

"Military school?" Meng Tian's heart moved.

"That's right, it's for the training of soldiers." Qin An said, "Ordinary soldiers can retire after three years as soldiers, and soldiers who graduated from military schools are the backbone of the army, so they will retire later." ”

"What, retired after three years as a soldier?" Meng Tian was taken aback, "Sir, isn't it true that the old man's soldiers are stronger in battle?" ”

"That's right, the older the soldier, the stronger the combat power. However, our country has become a powerful country in the world, both economically and militarily, and even the third largest country in the world.

So everyone in the world dared to wage war against our country, and we have been at peace for more than 70 years.

And now it's no longer the ancient times when you use knives to cut each other, and with muskets, no matter how high your martial arts are, you can't beat a bullet.

The most important thing is that there is now a set of training methods in the army, which trains every day, and trains the soldiers' spirit and spirit very well, and orders and prohibitions are carried out, so that they can kill the enemy bravely on the battlefield 100% of the time. Qin An explained.

"The way soldiers are trained, isn't that the way of training, sir?" Meng Tian asked. He was a soldier and the commander of the Mengjia army, and he had always been unable to find ways to train soldiers.

Although he occupied the six countries and collected the training methods of the six countries, there are only a few things that can be used.

There are many art of war, but they can only be used on the battlefield, not in military training.

So when he heard that there was a way to train soldiers in later generations, how could he not be moved?

Qin An shook his head and said: "I don't understand the way of formal military training, I haven't been a soldier, I can only train simply, as long as you have read books, you need military training after you go to junior high school."

Lao Meng, if you want, I'll give it to you, it's just the simplest physical training. ”

"I need it, thank you sir." Meng Tian said excitedly.

Ying Zheng and Meng Chongde were also very happy, one was happy that Great Qin would add another tiger and wolf division, and the other was happy that his father could get what he wanted, and he was happy that the Meng family army would add more combat power.

"Let me tidy it up in the evening, and give it to you tomorrow, let's eat first, this mutton is not delicious when it is cold." Qin An said.

"Good. Thank you sir. Meng Tian replied.

Li Si and the others didn't dare to move for a while, the First Emperor hadn't sat yet, how could they dare to sit.

Ying Zheng hurriedly greeted everyone and said, "Sit down, you don't need so much etiquette here in Mr., feel free." ”

"No."

Then everyone sat down, and this time the table was no longer a square table, but a round table, a large round table.

Qin An found that there were more and more guests, so he asked Li Si to send someone to build a large round table.

When this round table was made, Li Si still felt that it was not needed, but now he found that it was just right, and if he squeezed it, he could squeeze a few people.

For the all-sheep banquet made by Qin An, Yingzheng and several people were full of praise, and they ate all the mutton, and they thought that Qin An had made too little and not enough to eat.

Qin An was very helpless about this, this is a group of foodies, and they are also big foodies.

After the meal, the sky gradually darkened.

Qin An ordered the four of Fusu to wash the dishes and wipe the table.

"Village Chief, it's getting late tonight, just spend the night in my room, and I'll squeeze in with Li Xiao." Lees said.

Ying Zheng bowed his head and said, "Okay." ”

Qin An said: "Village chief, is there a mason in this village, after a few days the bricks from the brick kiln will come out, and you can build a house."

I think the villagers can live in brick houses. More importantly, the school needs brick houses. ”

"Leave this matter to Li Si." Ying Zheng said.

Li Si replied: "Sir, don't worry, just leave this matter to me, but it will be autumn in another month, and the villagers will be busy harvesting."

The brick house will be completely completed for a while. ”

Ying Zheng was like a world away, and said: "Yes, autumn is coming, it's time for everyone to enter the autumn harvest." ”