Rouge Pastoral: One Piece for Your Husband

Chapter 657 Challenge Math 4
"Prepare to choose one of beef, mutton, and pork, two of beans, eggplant, cucumber, and persimmon, and one of osmanthus cake, jujube cake, lotus paste cake, and lotus cake. Regardless of the order of selection, how many kinds are there? How to choose?"

Ning Qiu was still thinking about what to do if he really faced a particularly difficult problem, such as Goldbach's conjecture, but the first one he came up with was a factorial problem that was difficult for high school, which made Ning Qiu Qiu almost laughed.

Mu Zheng is still a math madman at this time of love...

So she calculated a few strokes on the paper, and told him the answer directly: "140 four."

Then... Hou Muzheng was stunned, Ke Hanyan, who was counting with his fingers, was stunned, even Rong Se, who had only calculated half of the calculation in his heart, was also stunned.

Among them, Hou Muzheng was the most restless. He really didn't expect that after he had calculated the question for half a day, Ning Qiu gave him the answer lightly... This girl came to beat him, right?

"You, how do you calculate this?" Hou Muzheng pointed to the ghost painting talisman above Ning Qiu and said.

Ning Qiu glanced at it, and found that it was just a few Arabic numerals and a few multiplication formulas. Thinking that these things might not have existed in ancient times, it would be a bit laborious to explain, so she asked: "What questions do you have in the future?" , are all of this type? You go out first, I will finish the calculation together, and then I will tell you the simple algorithm."

Both Rong Se and Ke Hanyan looked at Ning Qiu with slight surprise, while Hou Muzheng was about to jump up: "What did you say? There is also a simple algorithm?"

Ning Qiu nodded: "Naturally, otherwise, how long would it take to count one by one? By the way, I haven't asked just now, how long are you going to give me for this question?"

Hou Muzheng's face suddenly turned pale.He really didn't want to say that he was going to give Ning Qiu half an hour.As a result, Ning Qiu's family didn't even have time for half a stick of incense, so it was over.

My own face was slapped.

So he coughed lightly: "Anyway, your problem has been solved within my predetermined time, and I will move on to the next problem."

Ning Qiu glanced at Hou Muzheng suspiciously, and really felt that the pressure was gone: "Okay, tell me."

Hou Muzheng was going to make a difficult point this time, so he couldn't believe that Ning Qiu couldn't be troubled.

So he thought about it, and after calculating the problem for two days before he came up with the result, he said proudly: "From one to one thousand, let's do the math."

Ning Qiu really wanted to present Hou Muzheng with the Little Mathematics Award. In Dachu, literati admired gentleness, and few people were so interested in arithmetic.In life, it is actually nothing more than simple addition and subtraction, and calculations are the most commonly used.

When he was in Rong Se's school before, he only taught some simple addition and subtraction. After all, this is enough, and there is no need for advanced arithmetic problems.

But after thinking about it for a while, Ning Qiu had already said the answer: "50, right?"

Hou Muzheng was really speechless this time: "How did you do it so fast!"

He has been calculating for two days!

Ning Qiuqing coughed. Originally, he wanted to say that the summation formula using the arithmetic sequence was calculated in one go, but he wanted to explain it a bit more, and judging by Hou Muzheng's appearance, he might have calculated how much. It was calculated by a genius, so I still don't want to hit him.

(End of this chapter)