Hello Aspirants. Welcome to Online Quantitative Aptitude Section in AffairsCloud.com. Here we are creating question sample in Number Series, which is common for all the competitive exams. We have included Some questions that are repeatedly asked in bank exams !!!
Find the wrong number in the following series
- 16, 27, 44, 72, 96,131
A.44
B.72
C.27
D.96
E.None of these
Answer & Explanation
Answer – B.72
Explanation :
16+11 = 27
27+17 = 44….(11+6 = 17)
44+23 = 67
67+29 = 96
96+35 = 131
- 43 , 52, 34, 61, 89, 70
A.89
B.70
C.52
D.61
E.None of these
Answer & Explanation
Answer – A.89
Explanation :
43+(9*1) = 43+9 = 52
52-(9*2) = 52-18=34
34+(9*3) = 34+27 = 61
61-(9*4) = 61-36 = 25
25+(9*5) = 25+45 = 70
- 78, 38.5, 56.25, 138.125, 324.25
A.56.25
B.38.5
C.138.125
D.324.25
E.None of these
Answer & Explanation
Answer – D.324.25
Explanation :
78*0.5-0.5 = 38.5
38.5*1.5-1.5 = 56.25
56.25*2.5-2.5 = 138.125
138.125*3.5-3.5 = 479.94
- 512, 514, 528, 556, 612
A.556
B.612
C.514
D.528
E.None of these
Answer & Explanation
Answer – D.528
Explanation :
512 + 2 = 514
514+12 = 526………(12-2 =10+8 = 18+12 =30)
526+30 = 556……..(18+8 = 26+30 = 56)
556+56 = 612 = 612
- 157, 169.5, 194.5, 222, 282
A.222
B.282
C.194.4
D.169.5
E.None of these
Answer & Explanation
Answer – A.222
Explanation :
157+12.5 = 169.5
169.5+25 = 194.5
194.5+37.5 = 232
232+50 = 282
- 213, 220, 337, 697, 1761.5
A.337
B.697
C.1761.25
D.220
E.None of these
Answer & Explanation
Answer – A.337
Explanation :
213*1+7 = 220
220*1.5+11 = 330+11 = 341
341*2+15 = 682+15 = 697
697*2.5+19 = 1742.5+19 = 1761.5
- 3, 14, 23, 34, 47, 65
A.23
B.34
C.47
D.65
E.None of these
Answer & Explanation
Answer – D.65
Explanation :
1*2+1 = 2+1 = 3
3*4+2 = 12+2 = 14
4*5+3 = 20+3 = 23
5*6+4 = 30+4 = 34
6*7+5 = 42+5 = 47
7*8+6 = 56+6 = 62
- 13, 29.5, 121.5, 732.5, 5863.5
A.5863.5
B.732.5
C.121.5
D.29.5
E.None of these
Answer & Explanation
Answer – E.None of these
Explanation :
13*2+3.5 = 26+3.5 = 29.5
29.5*4+3.5 = 118+3.5 = 121.5
121.5*6+3.5 = 729+3.5 = 732.5
732.5*8+3.5 = 5860+3.5 = 5863.5
- 6, 12, 36, 96, 192, 384
A.36
B.96
C.192
D.384
E.None of these
Answer & Explanation
Answer – A.36
Explanation :
6*2^0 = 6
6*2^1 = 12
6*2^3 = 48
6*2^4 = 96
6*2^5 = 192
6*2^6 = 384
- 72, 73.4, 144, 436.2, 1739.2, 8689
A.144
B.8689
C.436.2
D.11739.2
E.None of these
Answer & Explanation
Answer – B.8689
Explanation :
72*1+1.4 = 73.4
73.4*2-2.8 = 144
144*3+4.2 = 436.2
436.2*4-5.6 = 1739.2
1739.2*5+7 = 8703
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