Mental Ability Tests on 'Alphabet and Number Sequences and Series' Set 29 | free questions for competitive exams for banks, PO exams, NDA, CAT, CDS, ITBP, Civil, Defence Services and National Talent Search Exams, UGC NET, GATE, CSAT

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**
Correct Answers:
Wrong Answers:
Unattempted:

Question 1

Examine the following series of digits and alphabets. How many pairs are such that the first item is a number but the second is an alphabet?

Q 2 3 V 7 H 5 P 5 M X Y W D O S 1 Z F 9

Soln.
Ans: D

At these locations: 3-V ;7-H ;5-P ;5-M ;1-Z ;

Question ID: 16-02-10-11-59-51-141.
Found an error? Send us the ID of this question.

Question 2

Study the following series.

J K Z W 7 @ 6 B 4 2 L 9 5 8 3 P I % X V

Find what should come in place of the question mark(?)

ZW , @B , ? , 9P

Soln.
Ans: C

There is a gap of 2 between the first characters of each of the given pair. The second character of each pair is increasingly moving one position to the right of the first character.

Question ID: 16-02-10-11-59-51-142.
Found an error? Send us the ID of this question.

Question 3

If the second half of the following series is reversed, then which item is 5th to the right of the 19th item from the right side? The series is:

S O X G C W 8 + H @ Y 4 1 T M 3 V L N D

Soln.
Ans: B

Midpoint is 10. We have to find 20 - 19 + 5 = 6 + 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 8.

Question ID: 16-02-10-11-59-51-143.
Found an error? Send us the ID of this question.

Question 4

If the alphabets at the positions 5, 14, 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

Soln.
Ans: A

The letters are: E, N, S, W. The word is NEWS

Question ID: 16-02-10-11-59-51-144.
Found an error? Send us the ID of this question.

Question 5

John is ranked 13th from the top and 18th from the bottom among the students who passed the annual examination. If the total number of failed students is 17, how many students appeared in the exam?

Soln.
Ans: C

Sum of positions of an item from top(right) and bottom(left) of a list is always equal to the sum of the positions of the first and last items. So total passed is = 13 + 18 - 1 = 30. Those appeared = failed + passed = 30 + 17 = 47.

Question ID: 16-02-10-11-59-51-145.
Found an error? Send us the ID of this question.