My movie queen ran away

The title of Chapter 21 is a bit complicated?

Gu Jiuzhang moved a chair and sat next to Gu Jiuge.

Gu Jiuge flipped through Gu Jiuzhang's book and asked, "Which question can't you do?"

"This question." Gu Jiuzhang pointed to a question.

Gu Jiuge nodded, read the title, and read it in a low voice.

“一块草地，每天生长的速度相同。现在这片牧草可供16头牛吃20天，或者供80只羊吃12天。如果一头牛一天的吃草量等于4只羊一天的吃草量，那么10头牛与60只羊一起吃可以吃多少天？”

After Gu Jiuge finished reading the question, he looked at Gu Jiuzhang: "Can't you answer this question?"

Gu Jiuzhang nodded a little guilty.

"Oh, let me see." Gu Jiuge looked suspicious, picked up a pen and drew on the paper.

After drawing for a long time, Gu Jiuge looked puzzled. Is this elementary school math problem so difficult?

She was reborn once, why didn't this IQ follow her rebirth?
When she was studying in the past, mathematics was the most troublesome thing for her. Gu Jiuge thought hard, and unconsciously began to bite the tip of the pen.

Why ask her math?
Except for mathematics, she can handle other subjects, but mathematics is just...

Gu Jiuge looked left and right, and frowned.

This topic... is a bit complicated...

"Sister?" Seeing that Gu Jiuge had been staring at the topic without speaking, Gu Jiuzhang called softly.

"Ah?" Gu Jiuge came back to his senses and looked at Gu Jiuzhang, "This topic is a bit complicated...I...I'll think about it...I'll teach you..."

Gu Jiuzhang stared at the topic, a look of doubt appeared on his little face, is this topic complicated?
It's not complicated!Quite simple!
Gu Jiuge stared at the topic in a daze for a few minutes, then turned to look at Gu Jiuzhang, and asked, "Just... this one topic? Is there anything else?"

"Oh, there's more." Gu Jiuzhang quickly pointed to other topics after hearing this, "This, I can't do this either."

"This? Let me see..."

Gu Jiuge looked at the title and said it again in his heart.

Among A, B, and C, one is a pastor, one is a liar, and the other is a gambler.The priest speaks only the truth, the liar speaks only the lie, and the gambler sometimes speaks the truth and sometimes lies.A said: "C is a pastor." B said: "A is a gambler." C said: "B is a liar." Then what is the occupation of A, B, and C?
Gu Jiuge: "..." I'll go, what are these topics...

Brain teaser?
Did you learn this in elementary school?

Didn't she go to a fake primary school?
Gu Jiuge stared at the topic seriously, and said weakly: "Probably, A is a pastor, B is a liar, and C is a gambler?"

"Ah?" Gu Jiuzhang looked at Gu Jiuge and asked, "Why?" Sister, are you sure you made no mistake?
Why?How the hell does she know why!She just said it casually, making a wild guess!
"Then what are you talking about?" Gu Jiuge looked at Gu Jiuzhang.

Gu Jiuzhang said: "It's very simple, A is a gambler, B is a pastor, and C is a liar."

Gu Jiuge asked, "Why?"

Gu Jiuzhang explained: "Because the pastor is telling the truth, he cannot say that others are pastors, so A must not be a pastor. If it is assumed that B is a pastor, then A must be a gambler, then C is a liar, so it fits the title Meaning. But if C is a pastor, then B is a gambler, and A is a liar, but at the same time, it is impossible for A to tell the truth that "C is a pastor", so it is contradictory. This assumption is not valid, so it is the first one."

(End of this chapter)