# Number Series Online Quiz

Following quiz provides Multiple Choice Questions (MCQs) related to **Number Series**. You will have to read all the given answers and click over the correct answer. If you are not sure about the answer then you can check the answer using **Show Answer** button. You can use **Next Quiz** button to check new set of questions in the quiz.

Q 1 - Study the following series and answer the question.

234527384929546574956492784

How many 7's are there which are immediately preceded by 2?

**Options :**

### Answer : B

### Explanation

There are only two 7's which are immediately preceded by 2.

Q 2 - Find the next number in the following series

5646554554445343524

**Options :**

### Answer : C

### Explanation

The sequence is like: 56 46 55 45 54 44 53 43. Hence 2 will come.

### Answer : A

### Explanation

The sequence is like: 23456 2345 234 23 2. Hence 2 will come.

Look at the following numbers and answer the question

235 324 765 875 952

Q 4 - All the digits of all the numbers are written in reverse order. What will be the number formed if 2 is added to all the digits of the 2^{nd} highest number?

**Options :**

### Answer : D

### Explanation

After writing the numbers in reverse order, the 2^{nd} highest number is 567. If we will add 2 to all the digits then the number that will be formed is 789.

Look at the following numbers and answer the question

241 422 533 279 488

Q 5 - If all the numbers are written in the reverse order, what will be the number formed if 1 is added to all the digits of the 2^{nd} highest number?

**Options :**

### Answer : C

### Explanation

After writing the number in reverse order. the 2^{nd} highest number is 884. If we will add 1 to all the digits then the number that will be formed is 995.

Look at the following numbers and answer the question

471 182 293 546 734

Q 6 - What is the sum of 1^{st} and 3^{rd} digit of the 2^{nd} lowest number?

**Options :**

### Answer : C

### Explanation

The 2^{nd} lowest number is 293 and addition of 2 and 3 is 5.

Look at the following numbers and answer the question

621 597 245 331 208

Q 7 - If 5 is added to all the digits of 3^{rd} lowest number, then the number formed will be

**Options :**

### Answer : C

### Explanation

886 is the number that will be formed if 5 is added to all the digits of 3^{rd} lowest number that is 331.

Q 8 - Study the following series and answer the question.

23736479732894782945273849294956492784

How many 9's are there which are immediately preceded by an odd number?

**Options :**

### Answer : A

### Explanation

There is only one 9 which is immediately preceded by an odd number.

Q 9 - Study the following series and answer the question.

5646546754652345273849294956492784

How many 5's are there which are immediately preceded by and followed by an odd number?

**Options :**

### Answer : A

### Explanation

There are no such 5's.

Q 10 - Study the following series and answer the question.

23376478236476238745273848785676489478

Which digit is 16^{th} to left of 5^{th} from right?

**Options :**

### Answer : A

### Explanation

7 is 16^{th} to the left of 5^{th} from right.