The pedestrians who came and went were gradually attracted to the past, and Li Yaojie and the two women also followed the flow of people. One of the laws of the protagonist, no matter how crowded the crowd is, the protagonist can always squeeze to the front. Li Yaoji, as the protagonist, naturally squeezed into the first row. Of course, not squeezed; Instead, after the onlookers saw the sword of the fifth Yao unsheathed, they consciously gave way to a way, after all, mortals are still afraid of death.

"Chivalrous girl, there is really a row!" Li Yaoyu gave a thumbs up, admiring it from the bottom of his heart, and provoked Fifth Yao with a roll of the eyes.

"Take a look, the Weaver Girl blesses, the copper coin is doubled, the lowest is one penny, and the highest is twenty wen." The guy continued to shout. Li Yaojian fixed his eyes and saw a large table covered with red cloth, which covered the ground. On the desk, there are two small wooden boards, about the size of a modern ID card. One is on the front, engraved with the Weaver Girl, and the other is on the back, smooth and traceless.

"The rules of the game, you can bet one to twenty dollars, the dealer throws two wooden boards engraved with the statue of the Weaver Girl on one side, the copper coin doubles on the same side, and the money returns to the dealer on the other side." Someone read out the rules as written.

"So that's our chance of winning, right? We win both the engraved face and the backside. ”

"Xianggong, why do they want to make a loss-making business?" Xiaoxuan, like everyone else, thinks that the odds of winning on the same side are great, but anyone who has studied probability theory knows that the winning rate is the same.

"No, the banker and the player have the same chance of winning." Li Yaojian replied.

"Why?"

"I'll explain it to you when I go back."

Fifth Yao on the other side asked, "Even if the winning side is equal, why do they do thankless things?" ”

Li Yaowei also didn't understand, if the dealer didn't use any small means, at the end of the day, the profit and loss would be basically the same, was it to attract customers to the store behind him? No, this shop is a Chinese herbal medicine shop, which can't attract customers. Moreover, in case the dealer is unlucky, he will still lose money.

"I'll bet on the same face, ten cents."

"I'm twenty wen, the same face."

"I'm ...... Ten Dollars"

“……”

Pedestrians are placing bets.

"Xiao Xuan, bet on ten different sides." Li Yaojian also wanted to find out what this store wanted to do.

"Open, same face." For the first time, both boards are carved with the image of the Weaver Girl, on the same side.

"Wow! Win! ”

“……”

……

It didn't take long for more than ten to open, just like Li Yaoyu thought, the result was half-opened, Li Yaoyu asked Xiaoxuan to bet on different sides, but the result was no loss or gain. That is, the dealer did not use any means.

"Xianggong, let's go, it's boring, you can't win money." Xiao Xuan held the ten cents in the palm of her hand and made a bitter face. I thought: What kind of broken game is this, playing people!

Li Yaowei couldn't cry or laugh, and was about to leave, but he heard a guy arguing with a person.

"This gentleman, don't you understand that you have to buy and leave?" The guy glared and spoke in a bad tone.

"I said you guys are also dull, I won, what's wrong with taking ten copper plates from the losing side? Wouldn't it be nice to save you time? A middle-aged man was dissatisfied.

"We're doing this to ensure fairness and prevent people from stealing chickens and dogs!"

"Let's not say a word!" They were advised to calm down. The big man snorted coldly and left.

Li Yaowei frowned, he only noticed now that every time the dealer settles, he first collects the copper coins of the loser into the box under the table, and then takes them out to settle the winner. There isn't a single copper coin on the table, even if it's for fairness or rigor, right?

"Xiao Xuan, where is the copper coin just now?"

"Here."

"Lady, your sword should be able to easily cut a copper coin in two, right?"

Fifth Yao nodded. Copper coins are cast in bronze, and neither the hardness nor toughness of a sword made of steel is compared.

"You try these." Li Yaowei arranged the ten copper coins on the ground.

Fifth Yao looked at him puzzled, but didn't hesitate for long, drew his sword, bent down and slashed at the copper coin on the ground.

"Bang!" The copper coin bounced out under the sword.

"What is this doing?" Their actions alarmed the attention of others.

Li Yaoyu picked up the copper coin on the ground and sneered: Sure enough.

"Strange, why aren't these pieces broken, just twisted?" Fifth, Yao is eccentric. Her sword is made by the sword forging master himself, it can be said that the iron is sharpened like clay, and she actually chops small copper coins?

"Your sword is made of steel, and so are these copper coins, and it is impossible for you to cut your sword in two without your best efforts." Li Yaowei sneered.

"You mean, these copper coins are fake?" Fifth Yao exclaimed.

Li Yaowei nodded, he had always wondered why businessmen would open such a gambling game with no money because they were unprofitable. It's also strange why you have to put all the money away and settle it again, it turns out.

"All this is to exchange counterfeit money for real money through this kind of gambling."

Li Yaowei was also curious about why they didn't open a casino at first, but now he also understands that once they are found to open a casino, they can't run away, but now like this, they can open on the street and run away if they make a profit, and no one can catch them.

It's a pity that I met Li Yaoji, a science student from modern times who understands chemistry!

The onlookers around were also stunned when they heard Li Yaoji's words, "This son, are you saying that the copper coins they paid are fake?" ”

"Yes!"

"What nonsense are you talking about?" A few people in the dealer shouted angrily, "Don't bewitch the public here, where do we get counterfeit money?" ”

Li Yaowei smiled and said: "The copper coins we use are made of bronze or white copper, and the main component of these copper alloys is copper, and copper and acid do not react. But iron and acid react to produce hydrogen, and you don't understand it. Li Yaoji's gaze swept over everyone, as well as the few dealers whose eyes were wandering and panicked.

"All in all, real copper coins, put in vinegar, will only melt a little, but these fake copper coins are estimated to melt to the point that only a little residue remains."

"Nonsense, just say some inexplicable things, you are not welcome here, hurry up."

Li Yaoyu looked at the few people who were very nervous, and smiled slightly, "You will know if it is true or false, Xiaoxuan, go buy a jar of vinegar!" ”

The dealer panicked, glanced at each other, looked fierce, crossed the table, and rushed towards Li Yaoji.

Li Yaowei was taken aback, and forgot that I don't know how to do kung fu. Hurriedly retreated.

But I saw the fifth Yao step forward quickly, without using the sword out of the sheath, three times five divided by two, and several people fell!

"Good!" No matter how stupid the onlookers were, they knew that what Li Yaowei said was true, and when they saw several people being systematized, they applauded one after another.

"Thank you for saving your life." Li Yaoyu was shocked, patted his chest and said.

Fifth Yao gave him a blank look, "What now?" ”

A beauty is a beauty, she rolls her eyes and looks so good, "What else can I do, of course call the police, eh...... It's time to report to the official! Li Yaowei asked everyone not to touch these copper coins, they are all evidence, and they will be dealt with by the people of the government.

The county magistrate Wannian looked at the official document at the county office, and heard a report from his subordinates, saying that a large number of privately minted copper coins had been found. He was so frightened that he almost fell out of his chair. Currency is the lifeblood of the country's economy, and someone actually mints counterfeit money privately?

If this matter is not handled well, the court will blame him, and his black gauze hat may not be guaranteed!

His grandma's! You make counterfeit money and spend it somewhere else. It's so good that you can't die, you actually came to Chang'an to use it!

didn't care about complaining, Wannian hurriedly ran to the court......

……

……

[Shamelessly ask for a wave of collections, recommend tickets, and it's best to reward a little ......]