# Mental Ability Tests on 'Alphabet and Number Sequences and Series' Set 21

## 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. 21 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.

### Question 1

Carefully scan the following series of digits from 1-9, and determine how many 5 are there that are completely divisible by the number on their left but not divisible by the number that is second to their left?

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

A

5

B

0

C

2

D

1

Soln.
Ans: C

At these locations: 2-1-5 ;7-1-5 ;

Question ID: 16-02-10-11-59-51-101.
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### Question 2

This is a series of digits that has been written by randomly arranging 19 digits. How many consequetive pairs of numbers does it contain?

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

A

2

B

5

C

1

D

4

Soln.
Ans: A

At these locations: 5-6 ;6-7 ;

Question ID: 16-02-10-11-59-51-102.
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### Question 3

Which letter will be the 7th from right if 1st and 2nd, 3rd and 4th and so on are interchanged in the word COMMENDATION?

A

N

B

E

C

M

D

A

Soln.
Ans: B

Question ID: 16-02-10-11-59-51-103.
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### Question 4

If the alphabets at the positions 1, 2, 3, 5, 9, 14 and 20 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

J

B

A

C

C

D

B

Soln.
Ans: B

The letters are: A, B, C, E, I, N, T. The word is CABINET

Question ID: 16-02-10-11-59-51-104.
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### Question 5

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

A

Y

B

R

C

T

D

D

Soln.
Ans: C

The new letter is: EHERIDATIRYL

Question ID: 16-02-10-11-59-51-105.
Found an error? Send us the ID of this question.