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 !!!
- 5, 15, 65, 315, ?
A)1556
B)1565
C)1665
D)1656B) 1565
Explanation :
5*5 – 10 = 25 – 10 = 15
15*5 -10 = 75 – 10 = 65
65*5 – 10 = 325 – 10 = 315
315*5 – 10 = 1575 – 10 = 1565 - 460, 92, 36.8, 22.08, ?
A)17.664
B)18.44
C)16.33
D)10.56A)17.664
Explanation :
460*(1/5) = 92
92*(2/5) = 36.8
36.8*(3/5) = 22.08
22.08*(4/5) = 17.664 - 1023, 987, 915, 807, ?
A)563
B)543
C)636
D)663D)663
Explanation :
1023 – 36 = 987
987 – 72 = 915
915 – 108 = 807
807 – 144 = 663 - 16, 33, 69, 126, ?
A)257
B)246
C)206
D)298C)206
Explanation :
16+(16*1+1) = 16+17 = 33
33+(17*2+2) = 33 + 36 = 69
69+(18*3+3) = 69+57 = 126
126+(19*4+4) = 126+ 80 = 206 - 76, 517, 878, 1167, ?
A)1392
B)1932
C)1832
D)1672A)1392
Explanation :
76 + 21^2 = 76+441 = 517
517 + 19^2 = 517+361 =878
878 + 17^2 = 878 + 289 = 1167
1167 + 15^2 = 1167 + 225 = 1392 - 300, 150, 90, 63, ?
A)54.5
B)45.6
C)50.4
D)34.6C)50.4
Explanation :
300*0.5 = 150
150*0.6 = 90
90*0.7 = 63
63*0.8 = 50.4 - 8, 4, 4, 6, 12, ?
A)39
B)27
C)24
D)30D)30
Explanation :
8*(1/2) = 4
4*(1) = 4
4*(3/2) = 6
6*(2) = 12
12*(5/2) = 30 - 69, 77.28, 86.55, 96.936, ?
A)102.546
B)108.568
C)105.675
D)119.876B)108.568
Explanation :
69 + (12*69/100) = 69 + 8.28 = 77.28
77.28 + (12*77.28/100) = 77.28 + 9.27 = 86.55
86.55 + (12*86.55/100) = 86.55 +10.386 = 96.936
96.936 + 11.632 = 108.568 - 980, 147, 28, 11, 8.57, ?
A)12.653
B)10.765
C)8.224
D)5.675C)8.224
Explanation :
980/7 + 7 = 147
147/7 +7 = 28
28/7 + 7 = 11
11/7 + 7 = 8.57
8.57 /7 +7 = 8.224 - 15, 32, 14, 30, 13, ?
A)17
B)26
C)43
D)28D)28
Explanation :
15*2 + 2 = 30+2 = 32
32/2 – 2 = 14
14*2+2 = 30
30/2-2 = 13
13*2+2 = 28
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