Dear Aspirants,
We have introduced "the 17 days study plan to crack IPPB Scale-1 Prelims 2017". This plan is specifically dedicated to Quantitative Aptitude and cover all types of questions asked in Bank PO exams. This will help you to prepare in a more efficient and systematic way. So, follow this post to keep updated with the plan.
Directions(1-15): What should come in place of (_) in the following series:
1. 7, 15, 31, 63, 127, _
A. 254
B. 253
C. 255
D. 256
E. None of these
Sol. C)255
The pattern is, +8, +16, +32.....
2. 17, 23, 40, 67, 103, _
A. 147
B. 145
C. 148
D. 142
E. None of these
Sol. A)147
The difference of the difference is, +11, +10, +9, +8
3. 16, 20, 11, 27, 2, _
A. 36
B. 34,
C. 38
D. 32
E. None of these
Sol. C)38
The pattern is, +4, -9, +16, -25, +36
4. 1, 4, 9, 40, 195, _
A. 1175
B. 1174
C. 1178
D. 1176
E. None of these
Sol. D)1176
The pattern is, *2 + 2, *3 - 3, *4 + 4, *5 - 5, *6 + 6
5. 10, 17, 33, 57, 88, _
A. 130
B. 125
C. 120
D. 135
E. None of these
Sol. B)125
The difference of the difference is 9, 8, 7, 6
6. 12, 7, 8, 13, 27, _
A. 68
B. 67.5
C. 68.5
D. 69
E. None of these
Sol. C)68.5
The pattern is, *0.5 + 1, *1 + 1, *1.5 + 1, *2 + 1, *2.5 + 1
7. 6, 4, 5, 11, 39, _
A. 189
B. 190
C. 185
D. 181
E. None of these
Sol. A)189
The pattern is, *1 - 2, *2 - 3, *4 - 5, *5 - 6
8. 12, 15, 20, 29, 44, _
A. 66
B. 67
C. 65
D. 64
E. None of these
Sol. B)67
The pattern is, difference of the difference is 2, 4, 6, 8
9. 2, 6, 30, 60, 130, _
A. 200
B. 210
C. 220
D. 230
E. None of these
Sol. B)210
The pattern is, 1^3 + 1, 2^3 - 2, 3^3 + 3, 4^3 - 4, 5^3 + 5, 6^3 - 6
10. 5, 14, 36, 88, 204, _
A. 450
B. 452
C. 453
D. 456
E. None of these
Sol. B)452
The pattern is, *2 + 4, *2 + 8, *2 + 16, *2 + 28, *2 + 44
11. 5, 28, 47, 62, 73, _
A. 82
B. 85
C. 80
D. 86
E. None of these
Sol. C)80
The pattern is, + (4*6) - 1, + (4*5) - 1, + (4*4) - 1, + (4*3) - 1,
12. 5, 5, 30, -70, 155, _
A. -100
B. -240
C. -120
D. -245
E. None of these
Sol. D) -245
The pattern is, - 0, + 25, - 100, + 225, - 400
13. 3, 124, 205, 254, 279, _
A. 286
B. 288
C. 284
D. 283
E. None of these
Sol. B)288
The pattern is, +121, +81, +49, +25, +9
14. 2, 10, 47, 205, 945, _
A. 4941
B. 4931
C. 4921
D. 4911
E. None of these
Sol. A)4941
The pattern is,*1 + 2^3, *2 + 3^3, *3 + 4^3, *4 + 5^3, *5 + 6^3
15. 20, 30, 100, 20, 180, 10, _
A. 240
B. 20
C. 260
D. 40
E. None of these
Sol. C)260
Two alternating series, 1st one of +80 and 2nd one of -10
For more Updates & Notifications for bank exams like SBI PO, SBI CLERK, IBPS PO, IBPS RRB, IBPS CLERK, IBPS SO, NIACL, SSC CHSL, SSC CGL etc. like our facebook page at :