Alphabet Number Series Quiz Set 143 | Mental Ability Tests on 'Alphabet and Number Sequences and Series' Set 143 | 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

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Question 1

Which letter will be the 8th to the right of 6th letter from left of the letter which is exactly in the middle of the following series?

D B X M S O Q Y J W U E L H N V K Z P G T C F A R

Soln.
Ans: a

The letter will be at net position 8 - 6 to the mid of the series. This position is = (length/2) + 2 = 15 from the start of the series. The length of the series is 25, so its mid is at item 13.

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Question 2

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

N H O A Z 1 3 Q M 2 W L % F 9 I D E T U

Soln.
Ans: c

Midpoint is 10. We have to find 20 - 8 - 8 = 4 + 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 - 4 = 6 + 1 from the left in the original series. Which means the item is: 3.

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Question 3

Study the following series.

F M T 8 R Q J H X Z E S 7 U W O 9 P 5 +

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

RX , ? , XE , ES

Soln.
Ans: c

There is a gap of 1 between the first characters of each of the given pair. The second character of each pair is decreasingly moving one position to the right of the first character.

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Question 4

In the sequence of alphabets and digits below, how many pairs are such that the first item is an alphabet but the second is a number?

T S N 2 E 7 F V R 3 1 P Q 9 U 5 1 X 6 L

Soln.
Ans: a

At these locations: N-2 ;E-7 ;R-3 ;Q-9 ;U-5 ;X-6 ;

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Question 5

If the alphabets at the positions 1, 3, 8, 9, 15, 18 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