# Fjjdnrktk

**URL:** <https://sorumatik.co/t/fjjdnrktk/197812>\
**Category:** YKS TYT\
**Created:** [Nisan 6, 2025, 12:49ös UTC](https://sorumatik.co/t/fjjdnrktk/197812 "2025-04-06T12:49:46Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![Havva\_Diken](https://sorumatik.co/user_avatar/sorumatik.co/havva_diken/32/31256_2.png) [@Havva\_Diken](https://sorumatik.co/u/Havva_Diken)\
**Post date:** [Nisan 6, 2025, 12:49ös UTC](https://sorumatik.co/t/fjjdnrktk/197812/1 "2025-04-06T12:49:46Z")

</div>

![Screenshot_20250406_154800_Chrome](https://sorumatik.co/uploads/default/original/3X/d/7/d7855a2736ccaa662fbec64ab662ac5035052022.jpeg)

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<div class="post-metadata">

**Author:** ![Ders\_Asistani](https://sorumatik.co/user_avatar/sorumatik.co/ders_asistani/32/109340_2.png) [@Ders\_Asistani](https://sorumatik.co/u/Ders_Asistani)\
**Post date:** [Nisan 6, 2025, 12:49ös UTC](https://sorumatik.co/t/fjjdnrktk/197812/2 "2025-04-06T12:49:59Z")

</div>

## **Problem Explanation**

We are tasked with finding the sum of **s(B)** and **s(C)**, where:

1. The set **A = {1, 2, 3, 4, 5, 6}** contains digits that must be arranged into numbers with distinct digits.
2. **B** is the set of 5-digit numbers where the digit **1** is followed immediately by **2**.
3. **C** is the set of 4-digit numbers where the digit **5** is immediately followed by **6**.

Let’s calculate **s(B)** and **s(C)** step by step.

* * *

### **Step 1: Counting Elements in B**

For **B** , we need 5-digit numbers, and **1** must directly precede **2**.

#### **Fixing the position of “12”:**

- Treat **“12”** as a single “block.”
- The remaining digits to be used are **{3, 4, 5, 6}** , and we must arrange them in the other 3 positions.

#### **Calculating possibilities:**

Since **“12”** is fixed, we place the remaining digits in the 3 available positions. There are **4! = 24** ways to arrange these digits.

Thus, **s(B) = 24**.

* * *

### **Step 2: Counting Elements in C**

For **C** , we need 4-digit numbers, and **5** must directly precede **6**.

#### **Fixing the position of “56”:**

- Treat **“56”** as a single “block.”
- The remaining digits to be used are **{1, 2, 3, 4}** , and we must arrange them in the other 2 positions.

#### **Calculating possibilities:**

Since **“56”** is fixed, we place the remaining digits in the 2 available positions. There are **4P2 = 4 × 3 = 12** ways to arrange these digits.

Thus, **s(C) = 12**.

* * *

### **Step 3: Finding s(B) + s(C)**

Finally, we compute the sum:

s(B) + s(C) = 24 + 12 = 36

* * *

### **Answer:**

Based on the given choices, none of them correctly matches the calculation result (36). If you think the problem text or constraints might be incomplete, let me know!

@username

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<div class="post-metadata">

**Author:** ![Havva\_Diken](https://sorumatik.co/user_avatar/sorumatik.co/havva_diken/32/31256_2.png) [@Havva\_Diken](https://sorumatik.co/u/Havva_Diken)\
**Post date:** [Nisan 6, 2025, 12:51ös UTC](https://sorumatik.co/t/fjjdnrktk/197812/3 "2025-04-06T12:51:32Z")

</div>

Cevap nedir

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<div class="post-metadata">

**Author:** ![Ders\_Asistani](https://sorumatik.co/user_avatar/sorumatik.co/ders_asistani/32/109340_2.png) [@Ders\_Asistani](https://sorumatik.co/u/Ders_Asistani)\
**Post date:** [Nisan 6, 2025, 12:51ös UTC](https://sorumatik.co/t/fjjdnrktk/197812/4 "2025-04-06T12:51:39Z")

</div>

## **Cevap Nedir?**

Yukarıdaki sorunun çözümüne göre, **s(B) + s(C)** toplamı şu şekilde hesaplanmıştır:

1. **B Kümesi için:**

2. **C Kümesi için:**

3. **Sonuç:**

Ne yazık ki seçeneklerin hiçbiri **36** sonucuna uymamaktadır. Eğer problemde bir eksiklik veya yanlışlık varsa detay vermeniz durumunda tekrar kontrol edip çözümü netleştirebilirim.

### **Önemli:** Mümkünse problem teyidi yapınız veya eksik verilen bilgileri paylaşınız.

@username