# Mental Ability Tests on 'Alphabet and Number Sequences and Series' Set 221

## 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. 221 in this series.

Last Reviewed and Updated on February 7, 2020

## 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.

### Question 1

Which letter will be the 5th from right if 1st and 2nd, 3rd and 4th and so on are interchanged in the word IMPERVIOUSLY?

A

I

B

E

C

U

D

R

Soln.
Ans: A

The new letter is: MIEPVROISUYL

Question ID: 16-02-10-11-59-51-1101.
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### Question 2

If the second half of the following series is reversed, then which item is 5th to the right of the 15th item from the right side? The series is:

3 5 2 D 4 P 7 I E R C V + X K U A 8 Z Q

A

3

B

A

C

Z

D

C

Soln.
Ans: D

Midpoint is 10. We have to find 20 - 15 + 5 = 10 + 1th item from the left side. Since the location lies in the left half, reversing the series has no effect in this zone. So counting from the left side, the item is C.

Question ID: 16-02-10-11-59-51-1102.
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### Question 3

If every letter beginning from I is replaced by consecutive odd number beginning with 3, which number or letter will be 4th to the right of the 19th number or letter counting from the right end?

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

17

B

9

C

21

D

B

Soln.
Ans: B

The series becomes:

A B C D E F G H 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37

Question ID: 16-02-10-11-59-51-1103.
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### Question 4

If the second half of the following series is reversed, then which item is 4th to the left of the 5th item from the right side? The series is:

C Y U O + @ 7 J 9 X G H 6 % D T F B S I

A

I

B

Y

C

J

D

U

Soln.
Ans: A

Midpoint is 10. We have to find 20 - 5 - 4 = 11 + 1th item from the left side. Since the location lies in the right half, the sequence has been reversed in this zone. So the item will be at location 10 + (20 - 11) = 19 + 1 from the left in the original series. Which means the item is: I.

Question ID: 16-02-10-11-59-51-1104.
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### Question 5

If the first half of the following series is reversed, then which item is 6th to the right of the 15th item from the right side? The series is:

O I L F A P X 9 W C 2 Q J H Y T + 3 8 %

A

Q

B

C

C

X

D

+

Soln.
Ans: A

Midpoint is 10. We have to find 20 - 15 + 6 = 11 + 1th item from the left side. Since the location lies in the right half, reversing the series has no effect in this zone. So counting from the left side, the item is Q.

Question ID: 16-02-10-11-59-51-1105.
Found an error? Send us the ID of this question. 