Memory Based Question Paper asked RRB PO Prelim 9 September 2nd shift and 10 September 2017

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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

  1. A) 248
  2. B) 295
  3. C) 241
  4. D) 374
  5. E) 352

Option C

Pattern:

*2 – 1, *3 – 2, *4 – 3…….

 

0.5, 12, 52, 106, 107, ?

  1. A) 54
  2. B) 43
  3. C) 34
  4. D) 38
  5. E) 46

Option A

Pattern:

*8 + 8, *4 + 4, *2 + 2, *1 +1, *0.5 + 0.5

 

39, 31, 41, 29, 43, ?

  1. A) 24
  2. B) 34
  3. C) 27
  4. D) 21
  5. E) 35

Option C

Pattern:

-8, +10, -12, +14, -16

 

221, 109, 53, 25, 11, ?

  1. A) 2
  2. B) 6
  3. C) 5
  4. D) 4
  5. E) 7

Option D

Pattern:

221 – 3 = 218, 218/2 = 109…………..

11 – 3 = 8, 8/2 = 4

 

131, 67, 35, 19, 11, ?

  1. A) 4
  2. B) 8
  3. C) 5
  4. D) 6
  5. E) 7

Option D

Pattern:

131+3= 134, 134/2 = 67….

11+3 = 14, 14/2 = 7

 

Number Series

7, 6, 10, 27, 104, ?

  1. a) 530
  2. b) 493
  3. c) 489
  4. d) 515
  5. e) 509

 

6, 4, 5, 11, 39, ?

  1. a) 160
  2. b) 193
  3. c) 189
  4. d) 183
  5. e) 171

 

29, 15, 16, 34, 105, ?

  1. a) 334
  2. b) 444
  3. c) 424
  4. d) 347
  5. e) 455

 

89, 88, 85, 78, 63, ?

  1. a) 32
  2. b) 30
  3. c) 34
  4. d) 27
  5. e) 23

 

190, 94, 46, 22, ?, 4

  1. a) 16
  2. b) 10
  3. c) 9
  4. d) 13
  5. e) 8

 

19, 9, 8, 14, 39, ?

  1. a) 196
  2. b) 152
  3. c) 185
  4. d) 106
  5. e) 138

 

5, 28, 47, 64, 77, ?

  1. a) 96
  2. b) 98
  3. c) 85
  4. d) 106
  5. e) 88

 

4, 46, 86, 122, 156, ?

  1. a) 186
  2. b) 244
  3. c) 219
  4. d) 197
  5. e) 205

 

102, 101, 98, 91, 76, ?

  1. a) 42
  2. b) 40
  3. c) 45
  4. d) 37
  5. e) 33

 

728, 242, 80, 26, ?, 2

  1. a) 16
  2. b) 10
  3. c) 9
  4. d) 13
  5. e) 8

 

Number Series Answers:-

  1. d

*1 – 1, *2 – 2, *3 – 3, *4 – 4, *5 – 5

 

  1. c

*1 – 2, *2 – 3, *3 – 4, *4 – 5, *5 – 6

 

  1. c

*0.5 + 0.5, *1 + 1, *2, +2, *3 + 3, *4 + 4

 

  1. a

-1, -3, -7, -15, -31

 

  1. b

190 – 2 = 188/2 = 94

94 – 2 = 92, 92/2 = 46

46 – 2 = 44, 44/2 = 22

22 – 2 = 20, 20/2 = 10

 

  1. b

*0.5 – 0.5, *1 – 1, *2, – 2, *3 – 3, *4 – 4

 

  1. e

+23, +19, +17, +13, +11

 

  1. a

+42, +40, +36, +34, +30

 

  1. c

-1, -3, -7, -15, -31

 

  1. 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