number series Model Questions & Answers, Practice Test for ibps rrb po prelims
ibps rrb po prelims SYLLABUS WISE SUBJECTS MCQs
Number Series
Classification Odd Man Out
Coding Decoding
Blood Relation
Analogy
Ranking & Time Sequential and Alphabet Test
Direction and Distance Sense Test
Statement and Conclusion
Directions:
In the series of terms given in each of the questions below, identify the term which does not fit in the series.
G4T, J10R, M20P, P43N, S90L
Answer: (a)
The first letter of each term is moved three steps forward and the last letter is moved two steps backward to obtain the corresponding letters of the next term.
The numbers follow the sequence × 2 + 1, × 2 + 2, × 2 + 3, × 2 + 4.
So, 10 is wrong and must be replaced by (4 × 2 + 1) i.e. 9.
3, 2, 8, 9, 13, 22, 18, 32, 23, 42
Answer: (a)
There are 2 series :
3, 8, 13, 18, 23 and 2, 12, 22, 32, 42.
Hence 9 is wrong.
12, 18, 27, 90, 270, 945, 3780
Answer: (c)
If 27 is replaced by 36, then the ratios of two consecutive terms are 3/2, 2, 5/2, 3, ...
7, 28, 63, 124, 215, 342, 511
Answer: (a)
The series is
2 3 – 1, 33 – 1, 43 – 1, 53 – 1, 63 – 1, 73 – 1, 83 – 1
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