##### What will you learn from this article?

- Concept of order
- Different Formulas and tricks for solving questions
- Types of questions seen in the examinations

##### Exam Connect

Order as a topic is very straightforward and scoring. It is one of those topics which is seen across all of the competitive examinations. It is a short topic but with significant mark weightage.

### Order

This chapter is all about numbers and letter sequences in a particular pattern. In these questions, you are required to find out how many times a letter or number satisfying the conditions specified in the questions occurs. There are two subcategories of questions which are seen under this topic:

- Order in numbers
- Order in alphabets

#### Order in Numbers

In this type of question, a series of numbers is given and, the candidate has to find out the numbers which follow the given condition.

**Common Mistake: **While solving question these types of questions, students often check and evaluate one number/alphabet at a time, which is very cumbersome and time-consuming.

**EazyTip: **To simplify these types of questions, we will first convert the instructions given into a ** numeric or alphabetical key.** Like in a question if you are asked how many ‘7’ are preceded by a ‘9’ and followed by a ‘1’, then the numeric Key for the question would be 971, Therefore, while scanning through the given series, we will be looking out for a 971.

** Example Question: **How many 3s are there in the following number sequence, which is immediately proceeded by a ‘5’ and immediately followed by an ‘8’?

** 5 8 1 4 9 2 1 3 5 3 8 4 8 3 5 4 7**

**Solution: **Like in this question we are asked to find the number ‘3s’ which are preceded by a ‘5’ and followed by an ‘8’,

So the numeric key for this question would be 5 3 8,

Therefore, while scanning through the given series, we will be looking out for a 5 3 8.

**5 8 1 4 9 2 1 3 5 3 8 4 8 3 5 4 7**

So there is only one sequence of 5 3 8 present in the given series. Hence the answer is 1.

**Example Question: **Which of the following will be the last digit of the second-highest number after the position of the digits in each of the numbers given below is reversed?

**459 824 912 567 369 512 114**

**Solution:** Firstly, we will reverse the given number and arrange them in the ascending order.

215 219 411 428 765 954 963

Therefore, the last digit of the second-highest number is 4.

#### Order in Alphabets

In this type of question, a series of English alphabets are given and, the candidate has to find out the alphabets which follow the given condition.

**Example Question:** In the following series, how many W’s are between a Q and an E?

Q W E W Q W E Q E E E W Q Q E W Q W Q

**Solution:** Since the order of Q and E is not mentioned, we will consider both Q W E and E W Q.

Q W E W Q W E Q E E E W Q Q E W Q W Q

As we can see, there are four such pairs which follow the conditions.

Continue with Order and Ranking topic with the next article on Ranking: Concept and Types of Questions.