# Number Series Questions asked in Competitive Exams 2017

Dear Bankersdaily Aspirant,

Here we are providing Number series questions asked in all the competitive examinations like SBI PO, NICL AO and BOB PO. This material will be useful for all upcoming exams like IBPS RRB, PO, Clerk, UIIC, OICL and IRDAI.

## Number Series Questions asked in SBI PO Prelims 2017

1). 6, 4, 5, 11, ?, 361

Logic: Difference of x0.5+1, x1+1, x4+1, x8+1

2). 180, 179, 183, 156, 172, ?

Logic: Difference of -13, +22, -33, +42, -53

3). 16, 19, 30, 57, 116, ?

Logic: Difference  8, 16, 32, 64

4). 12, 5, 4, 5, ?

Logic: Difference of: x0.5-1, x1-1, x1.5-1, x2-1,

5)  8, 3, 2, 2, 3, ?

6) 17, 18.6, 15.4, 21.8, 9 , ?

7)  5, 9, 35, 209, ?, 16709

8) 256, 252, 225, 209, 84, ?

9)  5, 12, 23, 43, 79, ?

10) 180, 179, 183, 156, 172, ?

11) 9, 4, 3, 3, 4, 3, ?

12) 6, 5, 1469, ?, 4337

13) 4, 10, 160, 382, 640, ?

14) 5, 6.2, 9, 13.4, 19.4, ?

15) 7, 3, 2, 2, 4, ?

16) 4, 5, 16, 81, ?, 5113

17) 6, 9, 20, 47, 106, ?

18) 5, 6, 14, 23, 87, ?

19) 4 31 156 499 1226

20) 3 10 20 39 85

21) 6 4 5 11 ? 361

22) 7 9 21 67 273

23) 152 156 140 176 112 ?

Solutions 20-23)

24)  11 10 18 51 ? 995

Logic: *1-1, *2-2, *3-3, *4-4, *5-5

25) 15 8 9 15 ? 82.5

Logic: *0.5+0.5, *1+1, *1.5+1.5, *2+2, *2.5+2.5

26)  6 7 28 64 110 ? 216

Logic: 2nd step Addition changes +20,+15, +10, +5, +0

27) 325 316 291 242 161 ?

Logic: -9, -25, -49, -121,

28) 31 38 27 40 23 ?

Logic:

1st step -4 difference in 1,3,5 numbers

2nd step +2 in 2,4 numbers

29) 13 12 22 63 ?

Logic: *1-1, *2-2, *3-3, *4-4

30) 29 36 25 38 21 ?

Logic: +7 , -11, +13, -17, +19

31) 399 390 365 316 235 ?

Logic: -9 , -25, +49, -81, -121

32) 13, 7, 8, 13.5, ?, 75

Logic: Difference of: ×0.5+0.5, ×1+1, ×1.5+1.5, ×2+2, ×2.5+2.5

33) 7, 9, 41, 98, 175, ?

Logic: Difference of Difference of Difference: 5, 5, 5

34) 1. 9 8 14 39 ? 755

Logic: *1-1, *2-2, *3-3,*4-4

35) 25 32 21 34 17?

Logic: +7, -11,+13, -17, +19

36) 11 6 7 12 ? 67.5

Logic: *0.5+0.5, *1+1, *1.5+1.5, *2+2

37) 4 7 35 83 146 ?

Logic: difference of difference

38) 521 496 447 366 245 ?

Logic: Square based difference

Number Series Questions Asked In BOB PO

1 ) 174, 169, 162, 152, 138, ?

2 ) 1, 3, 10, 48 ,?

3 ) 462, 462, 456, 432, ?

4 ) 17, 24, 13, 26, 9, ?

5 ) 193, 97, 49, 25, ?

6 ) 174, 169, 162, 152, 138, ?

7 ) 1, 3, 10, 48 ,?, 6432

8 ) 462, 462, 456, 432, ?

9 ) 17, 24, 13, 26, 9, ?

10 ) 193, 97, 49, 25, ?

SOLUTIONS

1) -5,-7,-10,-14,-19
2) ×3,×3.33,×4.8
3) -3×0,-3×2,×3×2^3
4) +7,-11,+13,-17
5) 97×2-1=193,4 9×2-1,25×2-1,13×2-1

7)

1×1+2= 3

3×2+22 = 10

10×4+23 = 48

48×8+2= 400

400×16+2= 6432

Number Series Questions Asked In NICL AO

1) 9 ,12, 19, 34,61,—.

2) 5, 5, 12, 38, 101, —-.

3) 16, 7 ,6 , 8, 15,—-.

4)  144, 160, 135,1 71, —, 186.

5) 4, 3, 6, 25,—, 1503.

6) 116, 125, 107, 134, ?,143

7) 8, 6, 8, 14, 30, ?

8) 3,5,14,42, 107, ?

9) 7, 11, 19, 36, 69, ?

10) 6, 7, 24, 125, ?,7947