In these type of questions, you have to study a given number, alphabet series or data related to ranks (position) and answer questions based on that. Usually, the questions are based on finding a particular pattern or finding rank of a particular person.

8 6 6 10 5 6 8 7 5 6 10 9 8 6 7 8 7 5 4 3 6 7 8 9

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6 4 5 9 10 8 2 7 6 4 3 10 9 8 4 6

6 2 10 4 7 5 3 9 8 2 6 9 9 4

3 5 7 4 10 2 6 9 8 2 6 9 9 4

Firstly, count the final position of the digit i.e. third digit to the left of the third digit from the right will be 3 + 3 i.e. 6th digit from right. Now, find the digit at sixth place from the right, which is **8** and hence that becomes your answer.

In these type of questions, the rank of a person, both from the top and/ or from the bottom are mentioned and the total number of persons is to be calculated.

Let us directly use the formula

So, the total number of boys in the class in this case will be = (13 + 13 –1) = 25.
**Total number of persons in a row or class = (Rank of a person from upper end or left end) + (Rank of that person from lower or right end) - 1** So, the total number of boys in the class in this case will be = (13 + 13 –1) = 25.
**Example 5:** P and Q are ranked sixth and tenth respectively from top in a class of 30 students. What are their respective ranks from the bottom in the class?
**Solution:** Let us use the formula
**Rank of a person from lower or right end = (Total number of persons in row) - (Rank of that person from upper or left end) + 1** P’s rank from bottom will be = 30 – 6 + 1 = 25 Q’s rank from bottom will be = 30 – 10 + 1 = 21
**Example 6:** In a class of 32 students, David ranks 6th from the bottom. What is his rank from the top?
**Solution:** Applying the same formula as explained above.>
David’s rank from top will be = 32 – 6 + 1 = 27th
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**Order & sequencing: Key Learning**

- Total number of persons in a row or class = (Rank of a person from upper end or left end) + (Rank of that person from lower or right end) - 1
- Rank of a person from lower or right end = (Total number of persons in row) - (Rank of that person from upper or left end) + 1