Important Number Series Set 4-You do not miss out 

ব্যাঙ্কিং পরীক্ষার উপযোগী নম্বর সিরিজ ম্যাথ (Important Number Series Set 4)কত সহজে নির্ণয় করা যেতে পারে তার ট্রিকস এখানে দেওয়া হলো। 

Directions (1-10) What will come in place of question mark (?) in the given number series?

1) 3,14,83,254,627,?         

A) 1292

B) 1294

C) 1296

D) 1298

E) 300

2) 18,31,83,317,1565,?         

A) 9365

B) 9375

C) 9385

D) 9395

E) 9405

3) 43,145,381,841,1639,?         

A) 2911

B) 2913

C) 2915

D) 2917

E) 2919

4) 27,38,64,86,125,?         

A) 152

B) 154

C) 156

D) 158

E) 160

5) 12,39,120,363,1092,?         

A) 3275

B) 3279

C) 3284

D) 3287

E) 3291

6) 5,21,57,121,122,365,?

A) 536

B) 561

C) 584

D) 604

E) 628

7) 5,49,481,3841,?

A) 23041

B) 52041

C) 15024

D) 18924

E) 22422

8) 8,19,52,151,448,?

A) 1120

B) 1148

C) 1236

D) 1284

E) 1339

9) 9801,9604,9409,9216,9025,?

A) 8836

B) 8792

C) 8688

D) 8542

E) 8466

10) 339,733,1327,2201,3371,?

A) 4677

B) 4757

C) 4867

D) 4917

E) 5007

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Answer:-

1.B) The series is

(1)⁴ + 2,

(2)⁴-2,…………

So, the ans. is 1294

2.A) The series is

( x2-5),

(x3-10),

(x4-15 ),……

So, the ans. is 9365

3.B) The series is

(2)⁴ + (3)³ ,

(3)⁴+ (4)³ ,………………

So, the ans. is 2913

4.D) The series is

(3)³,

(3)³+11,

(4)³,…………….

So, the ans. is 158

5.B) (12×3) +3,

(39×3) + 3,

(120×3) + 3,……

So, the ans. is 3279

6.B) The series is

+(4)²,

+ (6)²,………….

So, the ans. is 561

7.A) The series is

(x12-11),

(x10-9),…………

8.E) The series is

(x3-5),

(x3-5),…..

9.A) The series is (99)² , (98)² ,………….

10.D) The series is

(7)³-4 ,

(9)³+4,…

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Directions (11-20) What will come in place of question mark (?) in the given number series?

11) 3,72,129,173,203,?         

A) 218

B) 294

C) 296

D) 278

E) 300

12) 4,3,5,14,55,?         

A) 365

B) 274

C) 385

D) 295

E) 405

13) 330,309,267,204,120,?         

A) 15

B) 13

C) 32

D) 16

E) 18

14) 24,12,12,18,36 ,?         

A) 52

B) 90

C) 98

D) 158

E) 60

15) 126,64,34,20,?,12      

A) 18

B) 12

C) 14

D) 16

E) 15

16) 4,11,24,44,72,?

A) 136

B) 161

C) 109

D) 204

E) 328

17) 13,21,37,69,?,261

A) 133

B) 204

C) 124

D) 189

E) 224

18) 17, 25, 15,27,13,?

A) 29

B) 31

C) 36

D) 28

E) 39

19) 11,12,20,29,93,?

A) 136

B) 192

C) 188

D) 242

E) 118

20) 11,12,26,81,328,?

A) 1677

B) 1757

C) 1867

D) 1645

E) 1007

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Answer:-

11.A) The series is 3+69=72,

72+57=129(-12),

129+44=173(-13)…..

So, the ans. is 218

12.B) The pattern is 

(x1-1),

(x2-1)……

So, the ans. is 274

13.A) The series is

(-1×21),

(-2×21),

(-3×21)

So, the ans. is 15

14.B) The series is

(x.5),

(x1),

(x1.5)…..

So, the ans. is 90

15.C) The pattern is (126/2)+1,…..

So, the ans. is 14

16.C) The series is

(4+7)=11,

(11+13)=24,

(24+20)=44,….

So, the ans. is 109

17.A) The series is +8,+16,+32,……

So, the ans. is 133

18.A) The series is

(17+8)=25,

(25-10)=15,

(15+12)=27,

(27-14)=13

So, the ans. is 29

19.E) The series Is

+ 1² ,

+ 2³ ……………….

So, the ans. is 118

20.D) The series is

(X1+1),

(x2+2),

(x3+3)……

So, the ans. is 1645

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