Questions Asked in SBI PO Prelims Held on 1st & 8th July 2018 (All Shifts)

Dear Readers, Here we have given the list of Number Series Questions Asked in SBI PO Examination which was held on 1st & 8th July 2018 (All Shifts). Aspirants can use this.

Number Series Questions Asked in SBI PO Prelims Examination (1st & 8th July 2018) All Shifts:

Directions (Q. 1 – 24) what value should come in the place of question mark (?) in the following number series?

1). 4, 9, 17, 35, ? , 139

Explanation:

The pattern is, *2 + 1, *2 – 1(alternatively)

The answer is, 69

2). 200, 101, 102, 154, ?

Explanation:

The pattern is, *0.5 + 1, *1 + 1, *1.5 + 1, *2 + 1,…

The answer is, 309

3). 5000, 1000, 400, 320, ? , 1638.4

Explanation:

The pattern is, *1/5, *2/5, *4/5, *8/5, *16/5,..

The answer is, 512

4). 2, 15, 59, 117, 116, ?

Explanation:

The pattern is, *8 – 1, *4 – 1, *2 – 1, *1 – 1, *0.5 – 1,…

The answer is, 57

5). 26, 138, 29, 142, 34, 148, ?

Explanation:

The pattern is alternative difference,

26 + 3 = 29, 29 + 5 = 34, 34 + 7 = 41

138 + 4 = 142, 142 + 6 = 148

The answer is, 41

6). 171, 172, 174, 183, ? , 872

Explanation:

The pattern is, +10, +21, +32, +43, +54,…

The answer is, 247

7). 142, 156, 114, ? , 86, 212

Explanation:

The pattern is, +(1*14), -(3*14), +(5*14), -(7*14), +(9*14),…

The answer is, 184

 8). 13, 23, 67, 131, ? , 779

Explanation:

The pattern is, *2 – 3, *3 – 2(alternatively)

The answer is, 391

 9). 47, 78, ? 156, 199, 246

Explanation:

The difference is, 31, 37, 41, 43, 47,.. (Prime numbers)

The answer is, 115

10). 118, 124, 136, ? , 178, 208

Explanation:

The difference is, 6, 12, 18, 24, 30,..

The answer is, 154

11). 23, 27, 39, 59, ? , 123

Explanation:

The difference of difference is 8, 8, 8,..

The answer is, 87

12). 70, 69, 73, 64, 80, 55 , ?

Explanation:

The pattern is, -12, +22, -32, +42, -52, +62,..

The answer is, 91

13). 8, 18, 50, 98, ? , 338

Explanation:

The pattern is, (prime no)2 × 2

(ie)., 22 × 2, 32 × 2, 52 × 2, 72 × 2, 112 × 2, 132 × 2,…

The answer is, 242

14). -9, -2, 17, 54, ? , 206

Explanation:

The pattern is, 13 – 10, 23 – 10, 33 – 10, 43 – 10, 53 – 10, 63 – 10

The answer is, 115

15). 39, 79, 119, 159, 199, ?

Explanation:

The difference is, 40, 40, 40,…

The answer is, 239

16). 7, ? , 7, 17, 63, 309

Explanation:

The pattern is, *1 – 2, *2 – 3, *3 – 4, *4 – 5, *5 – 6,..

The answer is, 5

17). 17, 22, 39, 76, 141, ?

Explanation:

The difference of difference is, 12, 20, 28, 36,..

The answer is, 242

18). 14, 526, 183, 399, 274, ?

Explanation:

The pattern is, +83, -73, +63, -53, +43,..

The answer is, 338

19). 16, 21, 76, 171, 296, ?

Explanation:

The difference of difference is, 50, 40, 30, 20

The answer is, 441

20). 53, 51.4, 48.2, 41.8, ? , 3.4

Explanation:

The difference is, *2

The answer is, 29

21). 8, 7, 13, 38, 151, ?

Explanation:

The pattern is, *1 – 1, *2 – 1, *3 – 1, *4 – 1, *5 – 1,..

The answer is, 754

22). 5760, ? , 192, 48, 16, 8

Explanation:

The pattern is, ÷ 6, ÷ 5, ÷ 4, ÷ 3, ÷ 2

The answer is, 960

23). 140, 135, 152, 115, ? , 79

Explanation:

The pattern is,

140 + 12 = 152, 152 + 28 = 180

135 – 20 = 115, 115 – 36 = 79

The answer is, 180

24). 101, 113, 119, 125, 134, ?

Explanation:

The pattern is,

The difference is, 12, 6, 6, 9, 18

(ie.,) 12*(1/2) = 6, 6*1 = 6, 6*(3/2) = 9, 9*2 = 18

The answer is, 152

Directions (Q. 1 – 10) Find the wrong term in the following number series.

1). 2, 11, 53, 208, 623

Explanation:

The correct series is, 2, 11, 53, 209, 623

The pattern is, *6 – 1, *5 – 2, *4 – 3, *3 – 4,..

The answer is, 208

2). 50, 39, 53, 35, 56, 32, 59

Explanation:

The correct series is, 50, 39, 53, 35, 56, 31, 59

The pattern is alternative difference,

50 + 3 = 53, 53 + 3 = 56, 56 + 3 = 59,

39 – 4 = 35, 35 – 4 = 31

The answer is, 32

3). 400, 200, 210, 300, 600, 1500, 4500

Explanation:

The correct series is, 400, 200, 200, 300, 600, 1500, 4500

The pattern is, *0.5, *1, *1.5, *2, *2.5, *3

The answer is, 210

4). 11, 5, 4, 4.5, 7, 14, 42

Explanation:

The correct series is, 11, 5, 4, 4.5, 7, 15, 42

The pattern is,

(11-1)*0.5 = 5, (5 – 1)*1 = 4, (4 – 1)*1.5 = 4.5, (4.5 – 1)*2 = 7, (7 – 1)*2.5 = 15, (15 – 1)*3 = 42

The answer is, 14

5). 59, 60, 61, 64, 79, 185, 1129

Explanation:

The correct series is, 59, 60, 61, 64, 79, 184, 1129

The difference is, *1, *3, *5, *7, *9,..

The answer is, 185

6). 26, 27, 34, 58, 106, 186, 306

Explanation:

The correct series is, 26, 26, 34, 58, 106, 186, 306

The difference of difference is, 8, 8, 8, 8,…

The answer is, 27

7). 291, 147, 75, 39, 22, 12, 7.5

Explanation:

The correct series is, 291, 147, 75, 39, 21, 12, 7.5

The pattern is,

(291 + 3)/2 = 147, (147 + 3)/2 = 75, (75 + 3)/2 = 39, (39 + 3)/2 = 21, (21 + 3)/2 = 12, (12 + 3)/2 = 7.5

The answer is, 22

8). 1, 3, 9, 31, 129, 652, 3913

Explanation:

The correct series is, 1, 3, 9, 31, 129, 651, 3913

The pattern is, *1 + 2, *2 + 3, *3 + 4, *4 + 5, *5 + 6, *6 + 7,…

The answer is, 652

 9). 330, 80, 280, 120, 250, 130, 240 

Explanation:

The correct series is, 330, 80, 280, 120, 250, 140, 240

The pattern is alternative difference,

330 – 50 = 280, 280 – 30 = 250, 250 – 10 = 240

80 + 40 = 120, 120 + 20 = 140

The answer is, 130

10). 4, 12, 21, 55, 110, 326, 375

Explanation:

The correct series is, 4, 12, 21, 85, 110, 326, 375

The pattern is, +23, +32, +43, +52, +63, +72,…

The answer is, 55

0 0 votes
Rating
guest
0 Comments
Inline Feedbacks
View all comments