Mental Ability Tests on 'Alphabet and Number Sequences and Series' Set 237

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. 237 in this series.

Last Reviewed and Updated on January 21, 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.

Your Score
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Question 1

If the first half of the following series is reversed, then which item is 5th to the left of the 7th item from the right side? The series is:

@ 9 T L C % 5 Y E K I R N B M 1 U Z + A

 A

Z

 B

T

 C

C

 D

M

Soln.
Ans: B

Midpoint is 10. We have to find 20 - 7 - 5 = 8 + 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 - 8 = 2 + 1 from the left in the original series. Which means the item is: T.

Question ID: 16-02-10-11-59-51-1181.
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Question 2

If the items from position 4 to the position 10 are reversed, then which item comes at position 9 in the following series? The series is:

Q $ X P A % V U 2 Z I B T 1 H R 7 N @ 5

 A

Q

 B

A

 C

%

 D

2

Soln.
Ans: B

The position 9 falls within the reversed positions. So the item at this position is the item at position 4 + 10 - 9 = 5 in the original series. We can count, the item is A

Question ID: 16-02-10-11-59-51-1182.
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Question 3

If the following series is reversed, then which item comes at position 16 counted from the left? The series is:

F 4 $ 7 I Z U O G B D N M X P V E S K C

 A

I

 B

U

 C

7

 D

V

Soln.
Ans: A

The item at position 16 is total items + 1 - 16 which is 20 + 1 - 16 = 5. Counting from the left we get I.

Question ID: 16-02-10-11-59-51-1183.
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Question 4

If every letter beginning from position 13, 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 S will be there in the resulting sequence?

D N V P M W G H J X E V S L E C N G R L Y D B B X

 A

4

 B

1

 C

3

 D

0

Soln.
Ans: B

The series becomes:

D N V P M W G H J X E V T M F D O H S M Z E C C Y

Question ID: 16-02-10-11-59-51-1184.
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Question 5

Which letter will be the 4th from right if 1st and 2nd, 3rd and 4th and so on are interchanged in the word FRACTOGRAPHY?

 A

Y

 B

G

 C

C

 D

P

Soln.
Ans: D

The new letter is: RFCAOTRGPAYH

Question ID: 16-02-10-11-59-51-1185.
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This Blog Post/Article "Mental Ability Tests on 'Alphabet and Number Sequences and Series' Set 237" by Parveen (Hoven) is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
Updated on 2020-01-21. Published on: 2016-02-10