Jiang Weiwei asked someone to bring an hourglass.
"Princess, please listen to the question."
"The first problem is that there are several chickens and rabbits in the same cage. From the top, there are 35 heads and from the bottom, there are 94 feet. How many chickens and rabbits are there in the cage? "
Hasna began to count with her fingers.
"A rabbit has four feet, a chicken has two feet and 94 feet..."
Jiang Wei slightly inverted the hourglass: "ask your royal highness to say the answer before the sand is over, otherwise you will fail to answer the question."
Hasna looked at the hourglass and became more and more worried.
The more anxious you are, the more confused you are.
She can't figure it out.
The maid around me is also counting.
Not only them, but also the surrounding melon eaters began to count.
Jiang Weiwei was still sitting on the ground, looking lazy.
The problem of chicken and rabbit in the same cage is a very classic arithmetic problem in Chinese history, which comes from Sun Tzu Suan Jing.
However, in this overhead world, there is no grandson's Sutra at all. The problem of chicken and rabbit in the same cage has never appeared. Now, as soon as Jiang Weiwei moved it out, everyone present has a headache.
Qiao Shuiying has the self-knowledge of learning slag. She knows she can't figure it out. She just doesn't do useless work.
But she wanted to know the answer.
She wanted to ask Jiang Weiwei several times, but because there were other people around, she had to force her curiosity down and hold it very hard.
Seeing the sand leaking out, Hasna was still struggling with her ten fingers.
She only has ten fingers, not enough!
She turned to look at the people behind her to see if anyone had worked out the answer?
Unfortunately, no one here calculated it.
Jiang Wei picked up the hourglass: "time is up, has your royal highness got the answer?"
Hasna finally let go of her poor ten fingers and said fiercely, "we don't usually raise chickens and rabbits in Xisha. Your problem is too difficult for us Xisha people!"
"So, did the princess give up answering?"
Hasina was unwilling to give up. She threw her heart horizontally and said an answer casually with the mentality of taking a chance.
"11 rabbits, 24 chickens!"
Jiang Wei showed a pity: "it's almost right. The correct answer is 12 rabbits and 23 chickens."
Hasna was heartbroken.
It's so close!
Not reconciled!
The maid asked, "how can we believe that the answer you said is correct?"
Jiang Weiwei snapped his fingers: "I like you most. Come on, let me explain to you. Suppose that the chicken and the rabbit are well-trained, blow a whistle, and they lift one foot, then there are 59 feet left. When they whistle again, they lift another foot, and there are 24 feet left. The chicken has only two feet. At this time, they all sit down. Then only rabbits can stand, so there are 12 rabbits and 23 chickens. Do you understand? "
The maid was dizzy and confused.
One of the quick responders in the crowd patted his thigh and exclaimed, "so it is! What a wonderful topic! "
Everyone looked at the man in unison, and the man lowered his voice to explain the problem to everyone.
Then there was a low voice of sudden enlightenment.
Hasna was still unwilling, but she couldn't find a reason to refute. She could only hold a word for a long time.
"Chickens and rabbits are not human. They won't listen to your password!"
Jiang smiled: "it's just a hypothesis. Don't worry, princess. There are two more questions. If you're lucky, you still have a chance to turn over."
Hasna became angry with shame: "you quickly make a question!"
After a pause, she added.
"No more chicken and rabbit problems!"
Jiang Wei was generous: "how about we change to cattle and sheep? Is this princess familiar? "
The most livestock raised in Xisha are cattle, sheep and horses.
Hasna immediately said, "yes!"
Compared with chicken and rabbit, she feels that cattle and sheep are much more familiar. If she makes a question with cattle and sheep, she can certainly answer it!
Jiang spoke slowly.
"There is a piece of grass on the pasture. This piece of grass grows at a constant speed every day. Assuming that this piece of grass can feed 10 cows for 20 days, or 15 cows for 10 days, how many days can these grass feed 25 cows?"
Hasna: "
People: "
What the hell is this?!
Jiang Wei turned the hourglass over and put it on the ground in front of him, reminding him.
"Time has started, please ask your royal highness to answer the question."
Hasna had to start counting her fingers again.
Others present also began a new meal.
Xisha doesn't have an abacus. People here usually rely on mental arithmetic. Some people with active mind can count with knots. It's not easy to make mistakes, but the efficiency is very low.
Someone at the scene has taken out the rope and began to tie knots one by one.
With the passage of time, there is less and less sand in the hourglass.
When the last bit of sand fell, Jiang slightly looked up at Hasna and asked with a smile.
"Has your royal highness been answered?"
Hasna only felt that one head was two big at this time.
She wanted to rush out now, let the slaves drive out all the cattle and sheep, let the cattle and sheep demonstrate the process of eating grass face to face, and see how many days they could eat?
Unable to work out the answer, she had to guess.
"You can eat for 10 days... No, not so much. It should be 5 days, not right. It's 6 days, right?"
As she said the answer, Hasna looked at Jiang Weiwei's face and wanted to see a clue from each other's face.
Jiang just smiled, "are you sure it's six days? No change? "
Hasna is very tangled.
She didn't know what the answer was, so she had to guess by intuition.
If this question is guessed wrong, she will make two wrong questions and lose completely to Jiang Weiwei.
She is not reconciled!
She bit her nails and hesitated for a long time before giving an answer.
"It should be five days."
Jiang looked at her slightly.
Hasna was so angry at her: "Why are you looking at me like that? Did I guess wrong again? "
Jiang smiled: "no, you guessed right."
"I knew I must have guessed wrong again. Who can know the answer to this broken question... Wait, what did you say just now? You said I guessed right? "
Jiang nodded slightly: "well, the answer is indeed 5 days. Congratulations."
Hasna jumped up with joy.
"Yes, yes, I guessed right! It's really five days! "
Everyone spoke in praise.
"Your Highness is witty, and you can guess right."
"Worthy of the royal highness of our country of fire."
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