Even undergraduates from the Department of Mathematical Sciences at Qingmu University were stumped?

When Ning Qingyun heard this, he couldn't help but become interested.

She is also very interested in mathematical problems, not to mention probability problems, which she also has some basic knowledge in high school.

But after reading the question, she frowned. It didn't seem difficult. The probability of success for each prisoner was 1/2, and each prisoner's challenge was an independent event, so the probability of 100 prisoners succeeding at the same time was

It is (1/2) raised to the 100th power...

Hey, no, it shouldn’t be a probability of 1/2. The question says that prisoners can discuss strategies. This involves the issue of optimal strategies. Different strategies will lead to different probabilities...

The more she thought about it, the more profound it seemed to her, and her high school knowledge was useless.

Is this question too difficult?

"Qin Ke, let's..." Ning Qingyun was about to say let's go queue up, then she heard Qin Ke say: "The answer is 31.2%."

Ning Qingyun's eyes widened. The female student's hands shook and she almost dropped the tablet. She asked again in disbelief: "How much?"

"Approximately equal to 0.312, which is 31.2%."

"This answer is...correct. Have you seen this question before? Impossible. This question was originally created by a professor from the Department of Mathematical Sciences. You can't have seen it before!"

When Ning Qingyun heard Qin Ke say a number, she didn't expect that he would answer it wrong, but after hearing that he actually answered it, she still couldn't help but be amazed and admired in her heart.

This should involve university knowledge, right? This guy has read all the books he bought before? Has he mastered it proficiently?

Isn’t this too awesome?

The female student looked at Qin Ke with the same shock: "Junior brother, what's your name? Isn't it amazing? How did you calculate it without using pen and paper?"

"My name is Qin Ke." Qin Ke said with a smile: "Just do the math mentally. Well... it would take too long to describe the process, so I will just say a few words."

"The key to this question is strategy. What I'm thinking of is the thimble strategy. Each prisoner goes in and first opens the drawer with the same number as his own number, takes out the number plate from it, and then opens the drawer corresponding to the number plate. After that, he repeats this process until he finds himself.

Number plates, or all 50 drawers have been used up, so that you can have the greatest probability of escape. After figuring out the strategy, you can calculate it by combining numbers and shapes. We have limited time, and we will elaborate on it next time when we have time. Senior sister, can you

Can't you let us in?"

"Okay. This is a special ticket. Show it to the staff over there and they will let you in first." The female student looked at Qin Ke again in shock and gave Ning Qingyun a thumbs up:

"Junior sister, you have good taste. Your boyfriend is not only handsome, but also very smart!"

Ning Qingyun's face turned red. Just when she was about to say that he was not my boyfriend, Qin Ke smiled and said, "I am not her boyfriend. She and I are just good friends, right, school committee?"

Ning Qingyun nodded subconsciously, and then pursed her lips in dissatisfaction. Although she was misunderstood that she and Qin Ke were boyfriend and girlfriend, she felt shy, flustered, and even a little uneasy, but Qin Ke denied it, and she felt inexplicable and unhappy.

Cheer up.

You... why are you denying it so quickly? Are you just looking at this female college student who looks pretty and want to have some follow-up development?

Humph, apart from being more mature with makeup, she is far less beautiful than me!

Before the girl could finish her jealousy, Qin Ke had already taken her little hand and walked quickly towards the entrance of the exhibition hall.

"Study Committee, hurry up, there is a countdown over there, the next round of 'fireworks display' will start in two minutes."

"Hey..." Ning Qingyun glared at him dissatisfied, thinking that I haven't questioned you yet! But she was involuntarily pulled by him to the entrance.

After paying special tickets and changing into two so-called 4D glasses, the two quickly entered the Science and Technology Museum.

As soon as you walk there, it feels like you have walked into the boundless night sky, with the beautiful starry sky above your head. It is so beautiful that it can arouse the viewer's yearning and motivation to explore the starry sky and the universe.

"So beautiful..." Both of them put on 4D glasses, and their vision was dimmer, but the effect was indeed better, as if they were in the universe.

Ning Qingyun was completely intoxicated by the beautiful scenery created by technology, looking around innocently, while subconsciously holding Qin Ke's hand tightly, relying on him to guide the way.

Qin Ke's eyes have been systematically strengthened and can see at night. Even if he wears 4D glasses, he can still see the surrounding terrain clearly.

There are already many students here, and it is estimated that about a hundred people can come in at a time. It is not crowded at all in the venues of Nottingham University.

However, the venue is very large, and there is a small amount of projection equipment on the floor. Although there are warning lights, it is still easy to kick and trip if you don't pay attention.

Qin Ke looked at the "Countdown to the Fireworks Show" in the distance, rolled his eyes, and reminded: "Study Committee, there are a lot of people here, please stay closer to me, don't get lost."

Ning Qingyun nodded. The spectacular holographic images around her and above her head made her forget her initial jealousy and unhappiness, and excitedly walked side by side with Qin Ke.

Suddenly something seemed to trip her feet, and she exclaimed "Ah" and was about to fall down. Qin Ke was quick and quick, silently counting the time for the girl to fall, and hugged the girl's slender waist.

: "Be careful!"

Ning Qingyun fell into his arms, her face immediately flushed: "Sorry, I didn't pay attention to my steps..."

This time, Qin Ke didn't act as aggressively as before, but he just helped her up like a gentleman and said, "It's okay. There happens to be a small projector here. Please be careful next time."

."

Ning Qingyun blushed and nodded, and suddenly heard the prompt "The fireworks display is about to begin. Because the light is dark, please pay attention to safety and do not move around randomly." Five seconds later, the entire venue darkened, and the next moment "

Bang——!" a huge sound erupted.

Beautiful fireworks jumped up and flew into the air, blooming with gorgeous light.

The rise of the first firework was like a signal. Fireworks shot up into the sky one after another. The entire night sky was covered with gorgeous fireworks. The scene was spectacular and gorgeous, the sound was extremely real, and there seemed to be a faint smell of burning fireworks in the air.

.

This chapter is not over yet, please click on the next page to continue reading! The extremely gorgeous and realistic scene created by this kind of technological special effects shocked everyone present, and countless exclamations and exclamations were heard.

Ning Qingyun couldn't help but sigh: "Qin Ke, have you seen it? It's so beautiful and spectacular. It's probably impossible to set off so many fireworks at the same time in reality. How much would it cost? Technology can really change human life.

ah……"

"Yes... so beautiful." Qin Ke sighed, but his eyes fell on the girl's pretty profile.

The colorful rays of light that are constantly blooming all over the sky shine like stars in the girl's beautiful black eyes, giving them a gorgeous and deep color and making them even more moving.

The bright light of the fireworks scattered on her little face, lightly coating it with a hazy halo, making the girl's already beautiful and pure face even more beautiful.

The "natural wind" created in the venue blew by, blowing up the girl's beautiful black and shiny hair like a waterfall, and also brought the girl's familiar and delicious fragrance.

Qin Ke looked away, lest he could not control himself and kiss him and start the fight. The current academic committee's defensiveness and bottom line are constantly retreating. At this time, we must be steady and must not act too hastily.

However, if I can’t pass A, then...

"Study committee."

"Um?"

The sound of the fireworks was very loud, but Qin Ke's voice was a little quiet. Ning Qingyun just looked at the beautiful fireworks in the sky in amazement and responded casually.

"Can't you hear me clearly? I said, the school committee... I..." Qin Ke leaned close to Ning Qingyun's shining little ear and deliberately said something when the fireworks exploded. He said the last few words very softly.

.

"Huh? I still didn't hear clearly, what did you say?" Ning Qingyun felt her ears itching a little, and couldn't hear Qin Ke's words clearly, so she turned her head subconsciously.

Qin Ke immediately felt his cheek being gently rubbed by the girl's smooth little nose, and then two pieces of lips were pressed against his face.

The fireworks were blooming brilliantly above the head, and the interplay of light and shadow made this scene extremely beautiful and moving.

The girl's lips were extraordinarily delicate and soft, and a little slippery. They were as fresh and tender as freshly peeled lychees, and seemed to have a moving sweetness.

This unexpected touch made Ning Qingyun's beautiful Danfeng's eyes widen instantly, and then the girl suddenly jumped back like a frightened deer.

As soon as Qin Ke turned his head, with his eyes capable of night vision, he could clearly see that a layer of beautiful pink color quickly dyed her pretty face, including the roots of her ears and pink neck.

Qin Ke silently counted one, two, three, and then quickly stretched out his hand.

Ning Qingyun forgot that this was a dark place. Behind her was the small projection lamp that she almost fell over just now. As soon as she stepped back, she tripped and screamed that she was about to fall down again.

However, Qin Ke's hand was like a stuck point, and he reached it accurately. With a tug and a tug, the girl's soft body turned in a different direction, and she crashed into Qin Ke's arms.

Full of warm fragrance.

While Qin Ke was recalling the touching feeling on his cheeks, he said blankly: "What did you scream just now, Academic Committee?"

Ning Qingyun's face was so red that she almost smoked. She subconsciously touched her lips with her hand. She was so panicked, nervous and shy that she couldn't say anything at all.

"Why did you turn your head suddenly? You hit my nose."

Qin Ke rubbed his nose and activated his secret skills of "The bad guy complains first" and "Change the topic".

Ning Qingyun was startled, and then touched her red lips unconfidently again.
Chapter completed!