Drive the RV back to Datang

Chapter 303 Chapter 313: Wisdom Overwhelms Lu Dongzan
Li Hao has already started to close his eyes and think about this question, but Li Tai stood there in a daze, a little confused. Why did Lu Dongzan come up with such a question? This question seems to be too simple. Two feet, one day is one foot, and it will take seven days to climb out of a seven-foot-deep well. What's so difficult, why does Li Hao still close his eyes and meditate? He can't figure it out.

The officials couldn't figure it out either, they had the same idea as Li Tai, the answer should be seven days, what's the problem?Including Li Shimin also thought the same way. Li Shimin was bored in his free time, so he drew a well on paper with a pen, and then drew a caterpillar...

After a long time, Li Shimin's eyes suddenly lit up, and he finally understood the difficulty of this question. He didn't expect that there was such a big trap in this question. He couldn't help turning his head to look at Li Hao worriedly, wondering if Li Hao could discover this trap. .

About 2 minutes later, Li Hao slowly opened his eyes, looked at Lu Dongzan, smiled lightly and said, "It will take five days and four nights."

When Lu Dongzan heard the words, a look of surprise flashed across his face, he clapped his hands slowly and said, "Li County Marquis really deserves his reputation, admiration! Admiration!"

All the ministers were dumbfounded when they heard the words, how could it be five days and four nights, it should be seven days and seven nights!

Li Tai also shouted excitedly: "Why is it five days and four nights?"

Just as Li Hao wanted to speak, Li Shimin said, "Let me explain this question to you."

When Lu Dongzan heard the words, he turned his head and looked at Li Shimin in surprise. He didn't expect Tang Huang to be able to guess this question. It seems that Tang Huang is not easy.

Everyone focused their eyes on Li Shimin. Li Shimin seldom got the limelight, and smiled proudly: "The green worm climbs three feet during the day, falls two feet at night, one foot in one day and one night, four feet in four days and four nights, and four feet in five days and four nights." In the middle of the day, the caterpillar climbed another three feet, adding the original four feet, it was seven feet, and it had already reached the mouth of the well, so it lasted five days and four nights."

When everyone heard the words, they suddenly realized that there was such a big trap in this question, they were all deceived, and shouted "The emperor is wise", and Li Shimin straightened his beard with joy, feeling so cool to be in the limelight!

At the center of the hall, Lu Dong spread his hands in praise and said, "Li County Marquis, it's up to you to come up with the question."

Li Hao smiled and said: "Master Lu, don't blame me for being unkind. Your questions are getting more and more difficult. In order to avoid long nights and dreams, I have to let you fail."

"Oh?" Lu Dongzan raised his eyebrows and smiled when he heard the words, "It seems that Marquis Li still has a big move. Geer Dongzan is looking forward to it."

Li Hao sneered and said, "This is indeed a big move, I'm afraid it will be difficult for you to answer it."

Li Tai on the side was an academic fan. Hearing what Li Hao said, he couldn't hold back any longer, and hurriedly urged: "Li Hao, don't be fooled, come up with a question!"

Lu Dongzan also said indifferently: "Li County Marquis, come up with a question."

Li Hao nodded and said, "Your Majesty, I need a pen and paper."

Li Shimin gave Xu Lian a look, Xu Lian handed the pen and paper to Li Hao, Li Hao took the pen and paper, spread the paper in front of him, and wrote on the four sides of the paper, east, west, north, south, according to the orientation of the map, Up north down south left west right east.Then, Li Hao drew two parallel lines on the paper, facing east and west, and drew a few water waves in the middle of the parallel lines, and wrote a word "river", which represented a river.

At this point in the painting, Li Hao raised his head and asked Xiang Lu Dongzan: "Master Lu, can you understand what this is?"

Lu Dongzan smiled and nodded: "This is a river."

"It's good if you can understand it." Li Hao smiled lightly, and continued to paint, drawing a small circle ten centimeters below the river, and marking it next to the small circle - "Li's", and then two to the right of Li's house. A small circle was drawn at a distance of more than ten centimeters, marked as - "Wang's house". The Wang's house is a little closer to the river, only six or seven centimeters away.

Then Li Hao put down his pen and asked, "Master Lu, can you understand now?"

Lu Dongzan nodded again: "These are two families, one surnamed Li and the other surnamed Wang."

"That's right." Li Hao picked up the painting, got up suddenly, and showed the painting to everyone. Everyone was at a loss for a while, not knowing why Li Hao made this picture. Is that your problem?"

"Yes, Your Majesty." Li Hao turned his head to look at Lu Dongzan, and asked, "Master Lu, now the Li family and the Wang family want to work together to build two roads and a pier, and the pier will naturally be built by the river. , As for the two roads, they must go from Wang's house and Li's house to the wharf respectively. In order to save costs, the road should be built as short as possible. Make the total length of these two paths the shortest?"

Lu Dongzan was shocked when he heard the words, and looked at the painting in Li Hao's hand with frowning eyebrows. He had to admit...he was stumped.

Lu Dongzan's eyes were fixed on the painting, as if he wanted to see through it, and all the ministers also saw the clue. Lu Dongzan was different from before. Why is it different? When Lu Dongzan was thinking about the answer before , As long as you close your eyes and meditate for a moment, you can come to the answer, it looks extraordinarily easy, but this time is different, Lu Dongzan has shown such a dignified look for the first time since the beginning of the battle of wits in front of the palace.

Lu Dongzan frowned and stared at the painting for a long time, then suddenly said: "Can you lend me the pen and paper in your hand?"

Li Hao smiled generously, and pushed a stack of paper and ink to Lu Dongzan.

"Thank you." Lu Dong praised, picked up a pen and drew a picture on the paper, which was almost exactly the same as Li Hao's drawing, which was also a river and two small circles.

Next, Lu Dongzan tried to continuously set up points by the river. The point he set was the location of the wharf, and then he started to connect the "Li Family" and "Wang Family" from that point by the river.

However, Lu Dongzan tried for a long time, but still had no clue. On Li Shimin's desk, the sand in the hourglass was slowly leaking down, and time was passing by. Every picture was altered by him until it was unclear. After destroying one, he quickly drew another one, and continued to try to find the correct location of the pier.

Li Hao looked at the busy Lu Dongzan with a calm expression. He knew that Lu Dongzan would lose this time, because the solution to this problem surpassed this era, and the knowledge of geometry and physics was used. The stock theorem was discovered a long time ago, but geometry was often ignored afterwards. Instead, some craftsmen used geometry and physics more, but the craftsmen had low knowledge. Although they knew how to use it, they didn't know the reason. This is the authentic People know it but don't know why, so these two academics are difficult to carry forward in ancient times.

Li Hao knew that Lu Dongzan was proficient in arithmetic, but he guessed that geometry and physics should not be his forte, and now it seems that it is indeed the case.

After a long time, the last hourglass in the hourglass was exhausted, Li Shimin was overjoyed, and raised his voice, "The time is up, Prime Minister of Tubo, you have lost!"

Lu Dongzan raised his head in shock, and looked at the hourglass on the dragon table. Sure enough, the hourglass had leaked out. He sat on the ground powerlessly, with his head drooping, and remained silent for a long time.

Li Hao would not feel pity because of Lu Dongzan's state, he smiled and bowed to Lu Dongzan: "Master Lu, I have accepted."

Lu Dongzan looked up at him, staring at him with extremely complicated eyes. He really wanted to know the answer, but he didn't want to ask Li Hao, so he was conflicted.

This time, Li Tai didn't ask for an answer. Seeing that Lu Dongzan had remained silent for a long time, Li Hao raised his eyebrows and asked, "Does Prime Minister Lu not want to know the correct answer?"

Lu Dongzan snorted coldly: "If you lose, you lose. I'm not as good as others, and I still need to know the answer. Do you want to humiliate yourself!"

Li Hao raised his eyebrows and said with a smirk: "Aren't you afraid that there is no answer to this question?"

Lu Dongzan was taken aback when he heard the words, and then sneered: "Then count it as your luck, I, Geer Dongzan, can afford to lose!"

(End of this chapter)