Memory Based Question Paper asked RRB PO Prelim 9 September 2nd shift and 10 September 2017
519, 517, 509, 483, 403, ?
Difference of Difference: ×3
Answer: 241
27, 38, 51, 68, 87,?
Difference of Difference: 2, 4, 2, 4
Answer: 110
1094, 365, 122, 41, 14, ?
Logic:34×9, 33×9, 32×9, 31×9, 30×9
Answer: 5
7, 3, 2, 2, 4, ?
Logic: ×0.5-0.5, ×1-1, ×2-2, ×4-4, ×8-8
Answer: 24
1.5, 3.5, 10, 34, ?, 711
Logic:×1+2, ×2+3, ×3+4, ×4+5
Answer: 141
Puzzle 1:
Eight boxes A,B,C,D,J,K,L,M are arranged in a stack way. 3 boxes are kept in between A and J.there are As many boxes as in between c and J and c and A. There are 4 boxes in between k and B. K is immediately below C . There are 3 boxes in between M and D where D lies below M but not the Lowest. L does not lie immediately above J.
Solution:
M
B
L
A
D
C
K
J
Factorization based Questions :-
190, 94, 46, 22
5, 28, 47, 64, 77, ?
7, 4, 5, 12, 52, ?
89, 88, 85, 78, 63, ?
6, 4, 5, 11, 39, ?
Line Graph.
Quadratic Equations :-
x2- 8x + 15 = 0.
3y+22 – 11y + 10 = 0
y^2 = 16
x2 -7x + 12 = 0
3, 5, 13, 49, ?, 1441
- A) 248
- B) 295
- C) 241
- D) 374
- E) 352
Option C
Pattern:
*2 – 1, *3 – 2, *4 – 3…….
0.5, 12, 52, 106, 107, ?
- A) 54
- B) 43
- C) 34
- D) 38
- E) 46
Option A
Pattern:
*8 + 8, *4 + 4, *2 + 2, *1 +1, *0.5 + 0.5
39, 31, 41, 29, 43, ?
- A) 24
- B) 34
- C) 27
- D) 21
- E) 35
Option C
Pattern:
-8, +10, -12, +14, -16
221, 109, 53, 25, 11, ?
- A) 2
- B) 6
- C) 5
- D) 4
- E) 7
Option D
Pattern:
221 – 3 = 218, 218/2 = 109…………..
11 – 3 = 8, 8/2 = 4
131, 67, 35, 19, 11, ?
- A) 4
- B) 8
- C) 5
- D) 6
- E) 7
Option D
Pattern:
131+3= 134, 134/2 = 67….
11+3 = 14, 14/2 = 7
Number Series
7, 6, 10, 27, 104, ?
- a) 530
- b) 493
- c) 489
- d) 515
- e) 509
6, 4, 5, 11, 39, ?
- a) 160
- b) 193
- c) 189
- d) 183
- e) 171
29, 15, 16, 34, 105, ?
- a) 334
- b) 444
- c) 424
- d) 347
- e) 455
89, 88, 85, 78, 63, ?
- a) 32
- b) 30
- c) 34
- d) 27
- e) 23
190, 94, 46, 22, ?, 4
- a) 16
- b) 10
- c) 9
- d) 13
- e) 8
19, 9, 8, 14, 39, ?
- a) 196
- b) 152
- c) 185
- d) 106
- e) 138
5, 28, 47, 64, 77, ?
- a) 96
- b) 98
- c) 85
- d) 106
- e) 88
4, 46, 86, 122, 156, ?
- a) 186
- b) 244
- c) 219
- d) 197
- e) 205
102, 101, 98, 91, 76, ?
- a) 42
- b) 40
- c) 45
- d) 37
- e) 33
728, 242, 80, 26, ?, 2
- a) 16
- b) 10
- c) 9
- d) 13
- e) 8
Number Series Answers:-
- d
*1 – 1, *2 – 2, *3 – 3, *4 – 4, *5 – 5
- c
*1 – 2, *2 – 3, *3 – 4, *4 – 5, *5 – 6
- c
*0.5 + 0.5, *1 + 1, *2, +2, *3 + 3, *4 + 4
- a
-1, -3, -7, -15, -31
- b
190 – 2 = 188/2 = 94
94 – 2 = 92, 92/2 = 46
46 – 2 = 44, 44/2 = 22
22 – 2 = 20, 20/2 = 10
- b
*0.5 – 0.5, *1 – 1, *2, – 2, *3 – 3, *4 – 4
- e
+23, +19, +17, +13, +11
- a
+42, +40, +36, +34, +30
- c
-1, -3, -7, -15, -31
- e
728 – 2 = 726, 726/3 = 242
242 – 2 = 240, 240/3 = 80
80 – 2 = 78, 78/3 = 26
26 – 2 = 24, 24/3 = 8
