"Well, that's it!" Li Feibai replied affirmatively.

I thought that Nangong would readily agree, but unexpectedly, he replied with a smile:

"Why should I help you?"

The eyelids that had been drooping were raised slightly, and Li Fei's white fox stared at Nangong Ding suspiciously.

"Don't look at me like that, I'm a person who pays attention to equal interests. As much as you can, I will pay for you. ”

"Please say so!"

"Your family is in my hands, and King Qi treats you like this, I don't have to bother to save any Xu Qianqian Fang's holy hand, anyway, even if you don't work for me in the future, you will definitely not dare to continue to work for King Qi, this is enough for me." Nangong Ding was still smiling.

"Oh?" Li Feibai's eyes were cold: "Then believe it or not, I have a way to rescue my father and younger brother?" ”

"I believe it!" Nangong Ding smiled evilly: "But I promise, before you rescue them, they are already two cold corpses." ”

In the words, the two swords and swords kept fighting.

Confrontational eyes, no one took the lead in retreating!

Li Feibai sighed in his heart: When he was still a "White Tiger", Nangong Ding, as his only disciple, did not have such a strong sense of oppression.

Now that many years have passed, this disciple has become a hero, not only has his cultivation reached the heavenly level, but his mental strategy has become much more mature.

From the courtesy he received when he stepped into the main hall of the Tsing Yi Division, to the current words, Li Feibai knew in his heart that this was Nangong Ding's means to subdue him.

Salute first and then soldier, first grace and then might, soft and hard, it is difficult for any ordinary person to parry.

So, Li Feibai could only follow his meaning and ask: "Lord Wang, how can I save them?" ”

Putting away the coercion, Nangong Ding was very satisfied with Li Feibai's compromise.

"Xu Qianqian and Fang Shengshou are now in the hands of the Beishan Army outside the city, if they want to save them, they will inevitably clash with the army, which is not handled well and is considered to be complicity, and the cost is too great. This king has said that the interests of all things are equal, and if you want me to pay such a great price to save your people, you have to let me see your deeper value. ”

"In other words, you have to prove to me that you are worthy of the people who will save you at all costs."

Outside of the words, Nangong Ding was already very confident that Li Feibai would be able to serve him.

And now, it's just a matter of how good he is.

"How do you prove it?" Li Feibai replied lightly.

"It's very simple, I'll give you three questions, and if you can answer each question within a stick of incense, I will agree to your conditions."

"Okay, please ask the prince to ask the question." Li Feibai's expression was firm and full of confidence.

Nodding slightly, Nangong Ding shouted loudly at the door of the hall: "Someone, the question." ”

A guard moved in a table with a string of brass rings on it, and next to it was an incense burner with an unlit incense stick. Five

"Question 1." Nangong Ding pointed to the copper rings on the table and began to say, "This is a string of copper rings that are interlocking with each other, there are seven in total. You are only allowed to cut off one of these seven rings and ask for one ring to be taken every day, can you do it? ”

Holding the corners of his mouth and smiling, Li Feibai knew it in his heart.

This kind of arithmetic problem was already able to solve it when he was in elementary school in his previous life.

"The topic is a bit difficult, you have a stick of incense time to think." Nangong must have been a little proud.

"Come on, light incense!" He then ordered.

"No need." Li Feibai spoke out to stop it.

These three words made Nangong Ding, who was just about to turn around and take a seat, stunned.

"What, you gave up?"

"Give up? This word does not exist in my life. There was light in Li Feibai's eyes.

"And ...... you?" Nangong must be a little suspicious.

"I've got it!"

"Huh? So fast? Nangong Ding was somewhat unbelievable.

After all, on this topic, he stumped the elites of the six ministries and Jiuqing, including Chen Gongzhi, the secretary of Dali Temple.

"Trouble borrowing a knife." Li Feibai said to Sun Qirui beside him.

Looking at Nangong Ding, Sun Qirui asked for his opinion with his eyes.

Seeing the latter nodding, Sun Qirui took out the sharp blade on his waist and handed it to Li Feibai.

Holding the hilt of the knife, Li Feibai slashed towards the third copper ring.

(This chapter is not finished!) )

Chapter 218: Problem Solving (I)

"Knort"

The brass ring broke in response.

"Good knives!" Li Feibai exclaimed.

Even though he had no cultivation, it still felt effortless to cut off the copper ring.

Subsequently, he returned the knife to Sun Qirui.

Walking to the desk, Li Feibai removed the cut copper ring.

The seven copper rings on the desk were divided into three parts: one that was cut off, two copper rings on the left and four copper rings on the right, which were still fastened.

"Next." Li Feibai replied lightly.

"Brother Bai, is this unraveled?" Sun Qirui looked confused.

Glancing at the people in the hall, seeing that their faces were still full of suspicion, Li Feibai knew that they didn't know the answer.

Only Nangong Ding, his mouth was slightly open, and his eyes were shocked.

"That is, you can only take one copper ring a day, and there are two and four connected to it, how can you take it?" Someone in the hall couldn't help but ask.

There is no explanation, because Li Feibai wants to buy time and rescue Xu Qianqian's holy hand, and now it seems that he has to explain.

"On the first day, I took this severed brass ring, one."

"The next day, I took the two buckled copper rings, and put the copper rings back on the first day, which is equivalent to taking two."

"On the third day, I took away the severed brass rings, three in all."

"On the fourth day, I took away the four buckled copper rings, and put back the three copper rings that I took away in the previous three days, which is equivalent to taking four."

"On the fifth day, I'll come and take the severed brass rings again, five in all."

"On the sixth day, take away the two brass rings that are fastened, put down the one that is cut off, and take six."

"On the last day, take away the broken brass ring."

"So, don't I take only one brass ring a day?"

Li Feibai quickly explained.

At that time, people's arithmetic level only stayed at simple addition and subtraction, and they did not receive this kind of education in different thinking.

After listening to his words, Sun Qirui and the others were stunned.

Why didn't they think of this solution?

And as soon as Nangong's topic came out, Li Feibai immediately solved it, and he didn't even have time to order incense.

In the eyes of everyone, this is somewhat unbelievable!

"Bang Bang Bang"

Nangong couldn't help but applaud.

"Okay, well solved! Brother Bai is wise, and this king admires. ”

"Lord Wang, please come up with a second question." Li Feibai didn't want to waste time.

Knowing that he was in a hurry, Nangong Ding did not delay time.

"Come on, let's go to the second question."

The guard took the brass ring from the table, and the other took out twenty copper coins and placed them neatly on the table.

"There are twenty copper coins here, ten heads up, ten tails up, you will be blindfolded, you will be gloved, and you will divide these twenty copper coins into two groups of ten coins, and the two sets of copper coins must be exactly the same."

"Of course, after you blindfold, I'll mess up the order of these copper coins." Nangong Ding added.

Chapter 218: Problem Solving (I)