Number Series Model Questions Set 2 Section-Wise Topic Notes With Detailed Explanation And Example Questions
MOST IMPORTANT quantitative aptitude - 2 EXERCISES
The following question based on Number Series topic of quantitative aptitude
16, 14, 24, 66, 256, 1270, ?
(a) 5672
(b) 7608
(c) 8564
(d) 4561
e) 6340
The correct answers to the above question in:
Answer: (b)
The given number series is based on the following pattern:
16 × 1 - 2 = 14
14 × 2 - 4 = 24
24 × 3 - 6 = 66
66 × 4 - 8 = 256
256 × 5 - 10 = 1270
∴ ? = 1270 × 6 - 12
= 7620 - 12 = 7608
Hence, 7608 will replace the question mark.
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Read more model question set 2 Based Quantitative Aptitude Questions and Answers
Question : 1
What should come in place of the question mark (?) in the following number series?
1, 8, 9, ?, 25, 216, 49
a) 64
b) 75
c) 60
d) 70
e) None of these
Answer »Answer: (a)
Can you see that the pattern is
$1^2$, $2^3$, $3^2$, $4^3$, $5^2$, $6^3$, $7^2$
Question : 2
A wrong number is given in the following number series. Find out that wrong number.
16, 4, 2, 1.5, 1.75, 1.875
a) 1.75
b) 2
c) 1.875
d) 1.5
e) 4
Answer »Answer: (a)
The series is based on the following pattern:
16 × 0.25 = 4
4 × 0.50 = 2
2 × 0.75 = 1.5
1.5 × 1.00 = 1.5 ; not 1.75
1.5 × 1.25 = 1.875
Clearly, 1.75 should be replaced by 1.5.
Question : 3
What should come in place of the question mark (?) in the following number serie?
7, 26, 63, 124, 215, ?
a) 321
b) 356
c) 330
d) 342
e) 339
Answer »Answer: (d)
7 = $2^3$ – 1
26 = $3^3$ – 1
63 = $4^3$ – 1
124 = $5^3$ – 1
215 = $6^3$ – 1
? = $7^3$ – 1 = 342
Question : 4
A wrong number is given in the following number series. Find out that wrong number.
16, 19, 21, 30, 46, 71, 107
a) 21
b) 46
c) 19
d) 30
e) 71
Answer »Answer: (c)
The series is based on the following pattern :
16 + $1^2$ = 17; not 19
17 + $2^2$ = 21
21 + $3^2$ = 30
30 + $4^2$ = 46
46 + $5^2$ = 71
71 + $6^2$ = 107
Clearly, 19 should replaced by 17.
Question : 5
What should come in place of the question mark (?) in the following number series?
64, 54, 69, 49, 74, 44, ?
a) 69
b) 99
c) 89
d) 59
e) None of these
Answer »Answer: (e)
The series is as follows:
64 + 5 = 69;
69 + 5 = 74;
74 + 5 = 79
54 – 5 = 49;
49 – 5 = 44
Question : 6
What should come in place of the question mark (?) in the following number serie?
0, 5, 18, 43, 84, 145, ?
a) 240
b) 280
c) 220
d) 260
e) None of these
Answer »Answer: (e)
GET Number Series PRACTICE TEST EXERCISES
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Number Series Model Questions Set 2
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