Mental Ability Tests on 'Alphabet and Number Sequences and Series' Set 100

These questions help you develop speed and accuracy. Every exam tests these skills. So if you are preparing for a bank exam, state and national talent search exams, UGC NET, GATE, etc., then this quiz will help you master these skills. I have provided answers and solutions to each of the questions. This is quiz no. 100 in this series.

Last Reviewed and Updated on February 7, 2020
Posted by Parveen(Hoven),
Aptitude Trainer and Software Developer

Quiz Questions

Each question has four choices. More than one option can be correct. After you have finished the quiz scroll towards the last question to view your result. I have provided solutions and answers to all the questions.


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Question 1

Study the following series and find the odd man out from the choices below.

D A 6 4 Y W 8 1 N 5 B R K S P U H M 2 @

 A

6 Y 8

 B

Y 8 N

 C

4 Y 1

 D

4 W 1

Soln.
Ans: C

There is a gap of 1 in similar items, except the odd one.

Question ID: 16-02-10-11-59-51-496.
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Question 2

This is a series of digits that has been written by randomly arranging 19 digits. How many 3 are there that are completely divisible by the second number to their right?

4 9 7 5 3 2 1 5 6 3 7 2 3 9 7 3 3 1 8

 A

3

 B

1

 C

2

 D

4

Soln.
Ans: C

At these locations: 3-2-1 ;3-3-1 ;

Question ID: 16-02-10-11-59-51-497.
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Question 3

If the alphabets at the positions 8, 9, 19 and 23 are picked up and a meaningful word is formed out of them, what would be the second letter of that word?

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

 A

W

 B

S

 C

I

 D

B

Soln.
Ans: C

The letters are: H, I, S, W. The word is WISH

Question ID: 16-02-10-11-59-51-498.
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Question 4

If the first half of the following series is reversed, then which item is 8th to the left of the 6th item from the right side? The series is:

V O Q A @ Z J K S D 5 % 7 8 P $ Y I T 3

 A

O

 B

@

 C

Q

 D

%

Soln.
Ans: B

Midpoint is 10. We have to find 20 - 6 - 8 = 6 + 1th item from the left side. Since the location lies in the left half, the sequence has been reversed in this zone. So the item will be at location 10 - 6 = 4 + 1 from the left in the original series. Which means the item is: @.

Question ID: 16-02-10-11-59-51-499.
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Question 5

If every letter beginning from position 4, counted from left, is replaced by its successor in the English alphabet, and any Z after this position is replaced by A, then, how many Y will be there in the resulting sequence?

L D K L F R X K C C Z N U Y W Y R S G T Q S D G X

 A

6

 B

2

 C

1

 D

3

Soln.
Ans: B

The series becomes:

L D K M G S Y L D D A O V Z X Z S T H U R T E H Y

Question ID: 16-02-10-11-59-51-500.
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This Blog Post/Article "Mental Ability Tests on 'Alphabet and Number Sequences and Series' Set 100" by Parveen (Hoven) is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
Updated on 2020-02-07. Published on: 2016-02-10