Number Series Model Questions Set 1 Practice Questions Answers Test with Solutions & More Shortcuts
Number Series PRACTICE TEST [2 - EXERCISES]
Number Series Model Questions Set 1
Number Series Model Questions Set 2
Question : 21
What should come in place of the question mark (?) in the following number series?
0, 7, 26, ?, 124, 215
a) 51
b) 88
c) 37
d) 63
e) None of these
Answer »Answer: (d)
Try the pattern $n^3$ – 1. n = 1, 2, .......
Question : 22
What should come in place of the question mark (?) in the following number serie?
9, 27, 36, 63, 99, ?
a) 167
b) 162
c) 151
d) 152
e) 157
Answer »Answer: (b)
Here,
9 + 27 = 36
27 + 36 = 63
36 + 63 = 99
63 + 99 = 162.
Question : 23
What should come in place of the question mark (?) in the following number series?
10, 14, 25, 55, 140, (?)
a) 398
b) 396
c) 386
d) 388
e) None of these
Answer »Answer: (d)
The series is as follows:
× 3 – 16, × 3 – 17, × 3 – 20, × 3 – 25, × 3 – 32
Hence, ? = 140 × 3 – 32 = 388
Question : 24
What should come in place of the question mark (?) in the following number series?
2, 4, ?, 16, 32
a) 10
b) 12
c) 6
d) 8
e) None of these
Answer »Answer: (d)
The terms exhibit the pattern $2^1$, $2^2$, $2^3$ and so on.
Question : 25
What should come in place of the question mark (?) in the following number series?
24, 49, ?, 94, 15, 31, 59, 58
a) 63
b) 95
c) 51
d) 77
e) None of these
Answer »Answer: (b)
It is a combination of two series, namely
24, 49, ?, 94; and 15, 31, 59, 58
The two series correspond to
x, (2x + 1), (4x – 1), (4x – 2)
Hence the missing term is
4 x 24 – 1 = 95
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Number Series Model Questions Set 1 Online Quiz
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