"Opening order: Please answer all the questions on the stone platform." Yun Qingyu pronounced the words on the ceiling, and then pulled Feng Yu and walked quickly to the side of the platform.

I saw that there were indeed words with flashing light on the stone platform, and there was a brush with a small tip next to it.

There are three questions on the stone platform:

1. There are 100 spiritual beasts that have to confront each other once. How many times do these hundred spiritual beasts have to confront each other?

2. Arrange ten different formation nodes into a row. Ask, how many different arrangements are there?

3. As shown in the picture, how many kinds of forces does a square spirit stone that is still on the rough inclined surface receive?

Seeing the previous two questions, Yun Qingyu and Feng Yu looked at each other, with smiles in their eyes.

This seemingly complex calculation problem may be difficult for others, but it is a simple matter for the formation master. After all, in addition to having formation talent and formation ability, the most important point of the formation master is to calculate the formation, and the calculation of the formation involves extremely complex calculations.

Many times they have to pass all the possibilities through the spiritual consciousness, and the two of the one hundred spirit beasts confront each other once and ask how many times they have asked. In their opinion, it is like asking a hundred formation nodes, connecting two at will, and asking how many ways are there to connect.

Feng Yu quickly picked up the pen and wrote a number after two questions: 4950, 3628800.

"What should I do with this last question?" Yun Qingyun touched his chin and looked at the picture attached to the third question. They have never encountered such questions that can make the analysis receive how many forces they have received.

"There is spiritual energy between heaven and earth, and everything is affected by spiritual power. First of all, objects on this slope will receive spiritual power between heaven and earth." Feng Yu picked up his pen and quickly put the word "spiritual power" on it.

"There should be gravity." Yun Qinghui touched his chin: "The people who have not reached the spiritual master cannot fly in the Yinluo Continent because their own spiritual power cannot overcome the effect of the earth on our gravity."

"Since this spirit stone is subjected to downward gravity and has an inclined surface blocking the bottom, the inclined surface will give it a force to lift it." Feng Yu added another "the inclined surface to lift the spirit stone" on it.

"The spirit stone on the inclined surface should slide down, but it is said to be still... So, there is a force to stop it from sliding down?" Yun Qingxu looked at Feng Yu: "What force is that? Why does it exist?"

Feng Yuzai looked at the topic carefully, and finally turned his attention to the word "rough", and then related to some daily life reality: "On the slippery hillside, it is difficult for people to stand firmly. This spirit stone will not slide down on the inclined surface, probably because the inclined surface is rough."

"Then write about the power of a rough inclined surface to the spirit stone." Yun Qing said with a smile.

Soon, as Feng Yu wrote, three doors were opened in the palace.

Looking at these three doors, they all looked like a red vortex.

"Where do you go?" Yun Qingyu raised his eyebrows and looked at Feng Yu, thinking that this palace was quite interesting.

Feng Yu looked at Yun Qingyun with a smile, took her hand and walked slowly towards the middle door: "Let's go in the middle."

After passing through the door, Yun Qingyu and Feng Yu entered another palace.

And when they first entered the palace, countless spiritual blades attacked them.
Chapter completed!