# Nakafa Framework: LLM

URL: https://nakafa.com/en/exercises/high-school/snbt/quantitative-knowledge/try-out/set-8/20

Exercises: Try Out - Set 8: Real exam simulation to sharpen your skills and build confidence. - Question 20

---

## Exercise 20

### Question

export const metadata = {
  title: "Question 20",
  authors: [{ name: "Nabil Akbarazzima Fatih" }],
  date: "12/26/2025",
};

import { Graph } from "../graph";

<Graph
  title={<>Triangles <InlineMath math="Q" /> and <InlineMath math="R" /></>}
  description={
    <>
      Two triangles, <InlineMath math="Q" /> and <InlineMath math="R" />, with
      numbers on their sides and inside.
    </>
  }
/>

The value <InlineMath math="4" /> inside triangle <InlineMath math="Q" /> is the result of arithmetic operations on all numbers outside triangle <InlineMath math="Q" />. Using the same operation pattern, the correct value inside triangle <InlineMath math="R" /> is...


### Choices

- [ ] $$2$$
- [x] $$4$$
- [ ] $$5$$
- [ ] $$7$$
- [ ] $$1$$

### Answer & Explanation

export const metadata = {
  title: "Solution to Question 20",
  authors: [{ name: "Nabil Akbarazzima Fatih" }],
  date: "12/26/2025",
};

In triangle <InlineMath math="Q" />, the value <InlineMath math="4" /> is obtained using the following arithmetic operation:

<MathContainer>
  <BlockMath math="22 - 20 + 2 = 4" />
</MathContainer>

The pattern used is (Left Number <InlineMath math="-" /> Right Number) <InlineMath math="+" /> Bottom Number <InlineMath math="=" /> Center Number.

Using the same operation pattern, the value inside triangle <InlineMath math="R" /> can be obtained as follows:

<MathContainer>
  <BlockMath math="13 - 12 + 3 = 4" />
</MathContainer>

Thus, the value inside triangle <InlineMath math="R" /> is <InlineMath math="4" />.


---
