RBI Assistant Free Number Series Questions: Enjoy some free number series questions today. Make them count and reach for the stars.
Numbers Series (Quant):
Question 1: The following numbers form a series. Find the odd one out.
4, 3, 4, 9, 13, 155
a) 3
b) 4
c) 13
d) 155
e) 9
Answer: c
Solution:
4 × 1 – 1 = 3
3 × 2 – 2 = 4
4 × 3 – 3 = 9
9 × 4 – 4 = 32
32 × 5 – 5 = 155
So, 32 will come in the place of 13.
Hence, option c.
Question 2: The following numbers form a series. Find the odd one out.
34, 36, 26, 51, 2, 83
a) 51
b) 36
c) 2
d) 83
e) 26
Answer: b
Solution:
34 + 12 = 35
35 – 32 = 26
26 + 52 = 51
51 – 72 = 2
2 + 92 = 83
So, 35 will come in the place of 36.
Hence, option b.
Question 3: The following numbers form a series. Find the odd one out.
945, 210, 60, 24, 16, 8
a) 210
b) 16
c) 60
d) 8
e) 24
Answer: d
Solution:
945/ 4.5 = 210
210/ 3.5 = 60
60/2.5 = 24
24/1.5 = 16
16/0.5 = 32
So, 32 will come in the place of 8.
Hence, option d.
Question 4: The following numbers form a series. Find the odd one out.
54, 70, 58, 77, 62, 81
a) 70
b) 77
c) 58
d) 54
e) 62
Answer: a
Solution:
54 + 19 = 73
73 – 15 = 58
58 + 19 = 77
77 – 15 = 62
62 + 19 = 81
So, 73 will come in the place of 70.
Hence, option a.
Question 5: The following numbers form a series. Find the odd one out.
32, 38, 49, 67, 90, 132
a) 67
b) 90
c) 32
d) 38
e) 49
Answer: b
Solution:
32 + 6 = 38
38 + 11 = 49
49 + 18 = 67
67 + 27 = 94
94 + 38 = 132
So, 94 will come in the place of 90.
Hence, option b.
Question 6: What will come in place of the question mark (?) in the following series?
24, 94, 157, 213, ? 304
a) 284
b) 262
c) 296
d) 246
e) 256
Answer: b
Solution:
24 + 70 = 94
94 + 63 = 157
157 + 56 = 213
213 + 49 = 262
262 + 42 = 304
Hence, option b.
Question 7: What will come in place of the question mark (?) in the following series?
14, 15.2, 16.8, 19.2, 22.8, ?
a) 28
b) 27.6
c) 28.8
d) 27.2
e) 29.6
Answer: a
Solution:
Hence, option a.
Question 8: What will come in place of the question mark (?) in the following series?
16, ?, 48, 240, 1680, 15120
a) 20
b) 36
c) 20
d) 24
e) None of these
Answer: e)
Solution:
16 × 1 = 16
16 × 3 = 48
48 × 5 = 240
240 × 7 = 1680
1680 × 9 = 15120
Hence, option e.
Question 9: What will come in place of the question mark (?) in the following series?
78, 59, 42, ?, 18, 11
a) 24
b) 26
c) 32
d) 29
e) 35
Answer: d
Solution:
78 – 19 = 59
59 – 17 = 42
42 – 13 = 29
29 – 11 = 18
18 – 7 = 11
Hence, option d.
Question 10: What will come in place of the question mark (?) in the following series?
15, 8, 9, 15, ?, 82.5
a) 20
b) 32
c) 24
d) 27
e) 36
Answer: b
Solution:
15 × 0.5 + 0.5 = 8
8 × 1 + 1 = 9
9 + 1.5 + 1.5 = 15
15 × 2 + 2 = 32
32 × 2.5 + 2.5 = 82.5
Hence, option b.
- Sign Up on Practicemock for Updated Current Affairs, Free Topic Tests and Free Mini Mocks
- Sign Up Here to Download Free Study Material
Free Mock Tests for the Upcoming Exams
- IBPS RRB PO Free Mock Test 2024
- IBPS RRB Clerk Free Mock Test 2024
- SSC MTS Free Mock Test 2024
- SSC CHSL Free Mock Test 2024
- SSC CGL Free Mock Test 2024
- GATE Mechanical Free Mock Test 2024
- GATE Civil Free Mock Test 2024
- RRB ALP Free Mock Test 2024
- SSC CPO Free Mock Test 2024
- AFCAT Free Mock Test 2024
- SEBI Grade A Free Mock Test 2024
- IFSCA Grade A Free Mock Test 2024
- RBI Grade A Free Mock Test 2024
- RRB JE Free Mock Test 2024
- NABARD Grade A Free Mock Test 2024
- IBPS PO Free Mock Test 2024
- IBPS Clerk Free Mock Test 2024
- Free SSC Live Test