Alphabet Number Series Quiz Set 038 | Mental Ability Tests on 'Alphabet and Number Sequences and Series' Set 38 | 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

Study the following series.

P N V U A @ J S L B 6 O 3 D 1 % 4 G F 8

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

VU , ? , LO , O%

Soln.
Ans: a

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.

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Question 2

If the first half of the following series is reversed, then which item is 9th to the right of the 10th item from the right side? The series is:

Z 2 H I C Q F O 9 @ 1 G S D V U T R M 3

Soln.
Ans: a

Midpoint is 10. We have to find 20 - 10 + 9 = 19 + 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 3.

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Question 3

Sunita is ranked 18th from the top and 18th from the bottom among the students who passed the annual examination. If the total number of failed students is 8, how many students appeared in the exam?

Soln.
Ans: a

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 = 18 + 18 - 1 = 35. Those appeared = failed + passed = 35 + 8 = 43.

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Question 4

Carefully scan the following series of digits from 1-9, and determine how many 3 are there that are completely divisible by the number on their left but not divisible by the number that is second to their left?

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