# Aptitude Questions – Number Series Set 56

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Welcome to Online Quantitative Aptitude Section in AffairsCloud.com. Here we are creating question sample in Number Series based on latest pattern, which is common for SBI,IBPS, RBI,LIC, NICL and other  competitive exams.

1. 124  , 96,  60,  50 , 28  , ?
1.27
2.32
3.25
4.18
5.20
Explanation :
124/2 =62-2 = 60                                96/2 = 48+2 = 50
60/2=30-2 = 28                                   50/2 = 25+2 = 27

2. 37, 38, 58, ?, 293.5
1.152
2.124
3.98
4.110
5.117
Explanation :
37*1+1 = 38
38*3/2 + 1 = 58
58*2+1 = 117
117*5/2+1 = 293.5

3. 11, 18, ?, 159, 652
1.48
2.54
3.75
4.63
5.91
Explanation :
11*1+(1*7) =11+7 = 18
18*2+(2*6) = 36+12 = 48
48*3+(3*5) = 144+15 = 159
159*4+(4*4) = 636+16 = 652

4. 8,9, 11, 19, 67, ?
1.514
2.354
3.438
4.451
5.414
8+1*1 = 9
9+(1*2=2) = 11
11+(2*4=8) = 19
19+(8*6=48) = 67
67+(48*8=384) = 451

5. 1650, ?, 50, 9.5, 1.17, -0.415
1.1050
2.270
3.560
4.750
5.980
Explanation :
1650/6 – 5 = 275 – 5 = 270
270/5 -4 = 54-4 = 50
50/4 -3 = 12.5 -3 = 9.5
9.5/3 -2 = 3.17-2 = 1.17
1.17/2 -1 = 0.585-1 = -0.415

6. 290, 360, ?, 528, 626
1.442
2.424
3.222
4.444
5.440
Explanation :
17^2 = 289+1 = 290
19^2 =361-1 = 360
21^2 = 441+1 = 442
23^2 = 529-1 = 528
25^2 = 625+1 = 626

7. 2, 4, 18, 44, 82, ?, 194
1.132
2.121
3.123
4.114
5.142
Explanation :
2+2 =4
4+(2+12) = 18
18+(2+24) = 44
44+(2+36) = 82
82+(2+48) = 132
132+(2+60) = 194

8. 785, 835, ?, 905, 925, 935
1.875
2.970
3.865
4.940
5.855
Explanation :
785-5+55 = 835
835-4+44 = 875
875-3+33 = 905
905-2+22 = 925
925-1+11 = 935

9. 312, ?, 39.625, 30.47, 31.47
1.145.55
2.78.25
3.112.5
4.98
5.220.75
Explanation :
312*(0.25)+(0.25)= 78.25
78.25*(0.5)+(0.5) = 39.625
39.625*(0.75)+(0.75) =30.47
30.47*1+1 = 31.47

10. ?, 104, 41.6. 24.96, 19.97
1.370
2.630
3.350
4.410
5.520