IBPS Clerk/RRB Mains 2016 - Practice Quantitative Aptitude Questions (Number Series)

IBPS Clerk/RRB Mains 2016 - Practice Quantitative Aptitude Questions (Data Interpretation)  Set-59:

Dear Readers, Important Practice Aptitude Questions for IBPS Clerk/RRB Mains and Upcoming Exams was given here with Solutions. Aspirants those who are preparing for the examination can use this.

Directions (01-05): In each of these questions a number series is given. In each series only one number is wrong. Find out that number.

1). 7, 10, 17, 27, 44, 71, 116, 186

c)    71

d)    116

e)   186

2). 12, 24, 72, 288, 1440, 8645, 60480 .

b)   288

c)   1440

d)   8645

e)   60480

3). 2, 8, 18, 32, 50, 72, 99

4). 5, 6, 19, 41, 105, 230, 446

d)   230

e)   446

5). 10, 25, 55, 135, 235, 475, 955

b)   135

c)   235

d)   475

e)   955

Directions (06-10): What should come in place of question mark (?) in the following number series?

6). 50, 60, 72, 103.68, 124.416

a)   82.7

c)   86.4

d)   84.2

7). 56, 72, 90, ?, 156, 182

a)   102

b)   105

c)   110

d)   108

e)   100

8). 30, 68, 130, 222, ?, 520, 738

a)   342

b)   345

c)   348

d)   340

e)   350

9). 10, ?, 30, 75, 225, 787.5, 3150

10). 20, ?, 100, 300, 1050, 4200, 18900

Solution with Answers Key:

1) D; The series is 10 + 7 = 17, 17 + 10

=27,27 + 17 =44,44+ 27 = 71,71 +44 =115,

115 + 71= 186, ...

There should be 115 in place of 116.

2). D; The series is 12 x 1=12,12 x 2= 24,24 x 3 =72,72 x 4 =288,288 x 5= 1440,1440 x 6 = 8640,8640 x 7= 60480,...

There should be 8640 in place of 8645.

3). E; 1²x 2=2, 2²x 2=8, 3²x 2=I8, 4²x 2 =32, 5²x 2=50, 6²x 2 = 72, 7² x 2= 98…..

There should be 98 in place of 99.

4). C; The series is 5 + 1³ = 6, 6 +2³-14, 14+3³=41, 41+ 4³ = 105, 105 + 5³= 230, 230 + 6³ =446,...

There should be 14 in place of 19.

5). B; The series is 10 x2+5=25, 25 x2+5=55, 55 x 2+ 5 =115, 115 x 2 +5=235, 235 x 2+5=475, 475 x 2+ =955,... There should be 115 in place of 135.

6). C; The series is 50,50 x 1.2 =60,

60x 1.2=72, 72 x1.2=86.4,

86.4 x 1.2=103.68, 103.68 x 1.2=124.416,

7). C; The series is 8²-8 = 56, 9²-9 = 72, 10²-10 = 90, 11²-11

= 110, 12²— 12 = 132, 13²— 13 = 156, 14²— 14 = 182,...

8). E; The series is 3³+3=30, 4³+4=68, 5³+5= 130, 6³ +6 =222, 73+7 =350,

8³+8 = 520,

9).B; The series is 10 x 1.5 =15,

15 x 2.0=30, 30 x 2.5 =75, 75 x 3 =225, 225 x 3.5= 787.5, 787.5 x 4 = 3150, ...

10). D; The series is 20 x 2 = 40, 40x2.5=100, 100x3=300, 300x3.5

=1050,1050 x 4=4200...

 

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