Assuming that the flow rate of water discharging and filling is always constant, how long does it take to fill the pool with water while filling and discharging water at the same time?"

The black player immediately showed a question mark face.

Soon, the second-ranked Chinese runner approached the 20-kilometer supply point. He couldn't stand the temptation of the smell and stopped. Then he was told that he could only eat meat if he answered the questions correctly.

"What are you talking about?" The runner was confused. He had participated in so many marathons, and this was the first time he had seen this!

But looking at the security guards who were waiting for them, the contestants thought that if they didn't answer the questions correctly, they really wouldn't be able to eat the barbecue.

Looking at the golden and attractive barbecue on the barbecue grill, the aroma is simply irresistible, especially when you are exhausted, you really want to take a bite.

What's more, there are several girls drinking juice and eating barbecue next to me. Damn, it's really unbearable.

The player gritted his teeth and began to do mental calculations.

The black man next to him didn't leave either. He stood by and waited for him to calculate the answer.

Due to their stay, many players from behind gradually caught up with them. Without exception, they failed to resist the temptation and all stayed here.

The live TV broadcast recorded this strange scene, and the citizens watching the game were dumbfounded.

Yu Wen asked in the group: "Why didn't you run away?"

Jiang Yanan: "Are they waiting to eat meat?"

"Isn't it baked? Look at how delicious Chen Siyu and the others are eating. It makes me want to get up and eat." Cui Yu sighed in the group.

"Compared with barbecue, bonuses are more important," Duan Shigang said.

They were not physically present and could not feel the aroma of barbecue.

The second player in the original ranking calculated for two minutes but failed to calculate the result.

He scolded: "What kind of question is this? What kind of evil pen can fill water into the pool and pour water at the same time?"

In front of the picnic table, Chen Siqing was eating barbecue and silently unplugged her mobile phone while plugging in her power bank and playing videos.

In a hurry, until the players in the first tier behind them completely caught up, no one could figure out this problem.

With strong perseverance, the black contestant turned around and continued running. Although the food was extremely tempting, the prize money of 660,000 was also very important.

The marathon team once again stretches forward.

Soon, Jiang Ning and Yang Sheng ran nearby and passed by the roasted female pig. Jiang Ning quickly calculated the answer: "12 hours."

Yang Sheng was very determined to win the prize and took the first step.

Jiang Ning got a plate of barbecue, enjoyed it slowly, and drank a glass of freshly squeezed juice before continuing to the competition venue.

…

After passing 20 kilometers, there is only the last 1 kilometer left.

Jiang Ning's speed increased again. There were cheering audiences on both sides of the track. The female host on the live TV broadcast became excited.

The last 1km, 800m, 600m…

Jiang Ning ran in front of Yang Sheng again, unfolded his wind resistance wings, and increased his speed, passing by more than a dozen leading players.

In the 400 meters and 300 meters, Jiang Ning and Yang Sheng are close to the first black athlete.

The championship is coming.

At the edge of the track, a middle-aged man suddenly rushed out. He held a bright red flag high and ran towards Jiang Ning.

While running, wave the red flag.

In Class 8, Chen Qian spoke: "It's broken!"

Jiang Yanan replied instantly: "What's wrong? Isn't it a good thing that they sent flags?"

Chen Qian quickly replied: "Marathon runners have their own rhythm when they run to the final stage. If they take the flag at this time, it will increase the resistance and disrupt the rhythm."

After her explanation, the students understood that a small flag could have such big consequences.

"It's definitely not possible if you don't pick up the flag?" Xin Youling asked.

Chen Qian did not reply.

Not every place in the marathon has security, so if there is an emergency, the nearby security cannot stop it immediately. They can only watch the scene of passing the flag.

Jiang Ning glanced at the person who handed the flag and took it smoothly.

He shook gently, and the flag flew into the wind. Jiang Ning pinched the two corners and tied it around his neck. When he let go, the bright red flag spread out behind him like a cloak.

Jiang Ning took a few more steps, and his speed turned out to be a little faster than before. He suddenly jumped out and overtook the black man who was ranked first.

The host on the TV screen shouted excitedly: "First, first!"

The surrounding spectators looked at the young man's figure, and the fluttering red flag was like a burning flame, like a shooting star streaking across the field.

"come on! Come on!"

Countless applause and shouts gathered at the scene, forming a shocking wave of sound that pushed Jiang Ning forward.

In 1 hour and 7 minutes, Jiang Ning crossed the finish line with the first place advantage.
Chapter completed!