Target SBI PO Mains : Aptitude Day 7 : Number Series 

1) 9827, 9706, 9606, 9520, 9461

a) 9520

b) 9606

c) 9706

d) 9461

e) 9827

Click Here to View Answer
a) 9520

9827-121=9706

9706-100=9606

9606-81=9525≠9520

9525-64=9461

2) 72, 153, 202, 228, 236

a) 202

b) 228

c) 153

d) 236

e) 72

Click Here to View Answer
b) 228

72+9^2=153

153+7^2=202

202+5^2=227≠228

227+3^2=236

3) 183, 545, 868, 1157, 1413

a) 1413

b) 1157

c) 868

d) 545

e) 183

Click Here to View Answer
d) 545

183+〖19〗^2=544≠545

544+〖18〗^2=868

868+〖17〗^2=1157

1157+〖16〗^2=1413

4) 16, 4.25, 2.625, 2.718, 3, 5.897

a) 16

b) 5.897

c) 3

d) 2.625

e) 4.25

Click Here to View Answer
c) 3

16×0.25+0.25=4.25

4.25×0.5+0.5=2.625

2.625×0.75+0.75=2.718

2.718×1+1=3.718≠3

3.718×1.25+1.25=5.897

5) 20, 36, 53, 74, 105

a) 53

b) 20

c) 74

d) 36

e) 105

Click Here to View Answer
c) 74

So the wrong number is 105.

6) 544, 624, 704, 792, 884, 984

a) 624

b) 704

c) 884

d) 984

e) 544

Click Here to View Answer
b) 704

So the wrong number is 704.

7) 1991, 1964, 1749, 1019, -709

a) 1964

b) 1749

c) 1019

d) 1991

e) -709

Click Here to View Answer
b) 1749

1991-3^3=1964

1964-6^3=1748≠1749

1748-9^3=1019

1019-〖12〗^3=-709

8) 29, 36, 62, 124, 249, 464

a) 249

b) 464

c) 124

d) 36

e) 29

Click Here to View Answer
c) 124

(29-1)+2^3=36

(36-1)+3^3=62

(62-1)+4^3=125≠124

(125-1)+5^3=249

(249-1)+6^3=464

9) 31, 40, 76, 158, 301, 526

a) 158

b) 301

c) 40

d) 526

e) 76

Click Here to View Answer
a) 158

31+(3×3)=40

40+(6×6)=76

76+(9×9)=157≠158

157+(12×12)=301

301+(15×15)=526

10) 42, 215, 1101, 5625, 28750

a) 215

b) 5625

c) 1101

d) 42

e) 28750

Click Here to View Answer
c) 1101

42×5+5^1=215

215×5+5^2=1100≠1101

1100×5+5^3=5625

5625×5+5^4=28750

Tweet
Pin
Share
+1
0 Shares