Mental Ability Tests on 'Alphabet and Number Sequences and Series' Set 53 | 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.

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Question 1

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

Soln.
Ans: C

The new letter is: LECERTFIEISR

Question ID: 16-02-10-11-59-51-261.
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Question 2

If the first half of the following series is reversed, then which item is 7th to the left of the 8th item from the right side? The series is:

L 9 X H % Y W 6 $ F 3 + 2 B S O 7 Q G J

Soln.
Ans: C

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

Question ID: 16-02-10-11-59-51-262.
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Question 3

Position of Sham from the left in a row of students is 8, whereas the position of Bhairvi sitting in the same row is 9th from the right. After interchanging their positions, the position of the Sham becomes 7th from the left. What is the total number of students in the row?

Soln.
Ans: B

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 items is = 9 + 7 - 1 = 15.

Question ID: 16-02-10-11-59-51-263.
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Question 4

This is a series of digits and alphabets. How many pairs are such that the consecutive items are both numbers?

B V I 2 9 G P Z Y 8 Q N S O 4 5 F 6 1 K

Soln.
Ans: A

At these locations: 2-9 ;4-5 ;6-1 ;

Question ID: 16-02-10-11-59-51-264.
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Question 5

If the alphabets at the positions 1, 5, 9, 12, 13, 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

Soln.
Ans: A

The letters are: A, E, I, L, M, N, T. The word is AILMENT

Question ID: 16-02-10-11-59-51-265.
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