Quantitative Aptitude: Number Series Set 72

Directions: The following series are based on a certain pattern. One of the number in series is missing given by ?. Find that number.

1. 1, 2 , 8, ?, 148, 765
62
26
38
33
None
Option D
Solution:
1*1 + 1 2= 2
2*2 + 22= 8
8*3 + 32 = 33
33*4 + 42 = 148
148*5 + 52 = 765.
2. 48, 42, 54, ?, 61
47
52
45
42
None
Option A
Solution:
……. 48+6=54 ……… 54+7=61
48…… 42 ……. 54…….. 47……. 61
……. 48-6=42 ………. 54-7=47.
3. 20, 30, 52, 162, ?, 3222
644
462
554
675
None
Option A
Solution:
20*1+10=30
30*2-8=52
52*3+6=162
162*4-4=644
644*5+2=3222.
4. 9, ?, 73, 141, 241, 379
28
31
33
37
None
Option B
Solution:
23 + 12= 9
33 + 22=31
43 + 32=73
53 + 42=141
63 + 52=241
73 + 62=379.
5. 90, 72, ?, 42, 30, 20
65
69
56
52
None
Option C
Solution:
102 – 10= 90
92 – 9= 72
82 – 8=56
72 – 7=42
62 – 6=30
52 – 5=20.
6. 10, 4, 4, 7, ? , 87.25
18
20.5
24.5
37
None
Option B
Solution:
10*0.5-1=4
4*1.5-2=4
4*2.5-3=7
7*3.5-4=20.5
20.5*4.5-5=87.25.
7. 3, 4, 8, 17, 33, ?
44
54
46
58
None
Option D
Solution:
3+1*1=4
4+2*2=8
8+3*3=17
17+4*4=33
33+5*5=58.
8. 35, 49, ?, 119, 175, 245
77
65
62
71
None
Option A
Solution:
34+14=49
49+28=77
77+42=119
119+56=175
175+70=245.
9. 46, 24, 14, 10, 9, ?
10.5
9.5
11
10
None
Option B
Solution:
46/2+1=24
24/2+2=14
14/2+3=10
10/2+4=9
9/2+5=9.5.
10. 16, 7, 6, 8, 15, ?
33
30.5
25
36.5
None
Option D
Solution:
16*0.5-1=7
7*1-1=6
6*1.5-1=8
8*2-1=15
15*2.5-1=36.5.

5 Thoughts to “Quantitative Aptitude: Number Series Set 72”

1. jaga

thank u mam

2. Marry..

TY AZ

1. lokesh

wht it means??

1. Marry..

means -thank you aspirant zone

1. lokesh

oh…u r great