number series Practice Questions Answers Test with Solutions & More Shortcuts
series completion PRACTICE TEST [4 - EXERCISES]
number series
letter or alphabet series
alpha numeric series
continuous pattern series
Directions:
In each of the following questions, one term in the number series is wrong. Find out the wrong term.Question : 16 [S.S.S. 2002]
4, 10, 22, 46, 96, 190, 382
a) 4
b) 10
c) 96
d) 382
Answer »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.
Question : 17
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 »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 : 18
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 »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 : 19
2, 3, (6), 11, 18, (30), 38
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 »Answer: (b)
The correct pattern is +1, +3, +5, +7, +9, +11.
Clearly, the term 6 is correct.
But, 30 is wrong and must be replaced by (18 + 9)
i.e. 27.
Question : 20
(2), 5, (12), 25, 41, 61
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 »Answer: (d)
The correct pattern is +4, +18, +12, +16, +20.
Clearly, 2 is wrong and must be replaced by (5 - 1)
i.e. 4. Also, 12 is wrong and must be replaced by (5 + 8)
i.e. 13.
IMPORTANT verbal reasoning EXERCISES
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