number series Detailed Explanation And More Example

MOST IMPORTANT verbal reasoning - 4 EXERCISES

Top 10,000+ Verbal Memory Based Exercises

Directions:
In each of the following questions, a number series is given with one term missing. Choose the correct alternative that will continue the same pattern and replace the question mark in the given series.

The following question based on series completion topic of verbal reasoning

Questions : 10, 14, 26, 42, 70, ?

(a) 100

(b) 102

(c) 106

(d) 114

The correct answers to the above question in:

Answer: (d)

Each term in the series, except the first two terms, is 2 more than the sum of the preceding two terms.

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Read more number series test Based Verbal Reasoning Questions and Answers

Directions:
In each of the following questions, one term in the number series is wrong. Find out the wrong term.

Question : 1

4, 10, 22, 46, 96, 190, 382

a) 4

b) 10

c) 96

d) 382

Answer: (c)

The correct pattern is +6, +12, +24, +48, +96, +192.

So, 96 is wrong and must be replaced by (46 + 48) i.e. 94.

Directions:
In each of the following number series, two terms have been put within brackets. Mark your answer as
    (a) If both the bracketed terms are right;
    (b) If the first bracketed term is right and second is wrong;
    (c) If the first bracketed term is wrong and second is right; and
    (d) If both the bracketed terms are wrong.

[M.A.T. 2005]

Question : 2

4, 6, 10, (12), 16, (14), 22

a) If both the bracketed terms are right

b) if the first bracketed term is right and second is wrong

c) If the first bracketed term is wrong and second is right

d) If both the bracketed terms are wrong

Answer: (b)

The correct pattern is +2, +4, +2, +4, …..

Clearly, the term 12 is correct.

But, 14 is wrong and must be replaced by (16 + 2)

i.e. 18.

Question : 3

3, 10, 29, (66), (127), 218

a) If both the bracketed terms are right

b) If the first bracketed term is right and second is wrong

c) If the first bracketed term is wrong and second is right

d) If both the bracketed terms are wrong

Answer: (a)

The sequence is 13 + 2, 23 + 2, 33 + 2, 43 + 2, 53 + 2, 63 + 2.

Clearly, both the terms 66 and 127 are correct.

Question : 4

48, 24, 96, 48, 192, ?

a) 76

b) 90

c) 96

d) 98

Answer: (c)

The pattern is ÷2, ×4, ÷2, ×4, …..

So, missing term = 192 ÷ 2 = 96. 

Question : 5

5760, 960, ?, 48, 16, 8

a) 120

b) 160

c) 192

d) 240

Answer: (c)

The pattern is ÷6, ÷5, ÷4, ÷3, ÷2.

So, missing term = 960 ÷ 5 = 192.

Question : 6

1, 4, 10, 22, 46?

a) 64

b) 86

c) 94

d) 122

Answer: (c)

The pattern is + 3, + 6, + 12, + 24, …..

So, missing term = 46 + 48 = 94.

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