# Number Series 6-9-2016

Maths Tricks 0 Comments**Aptitude Questions: Number Series**

Welcome to Online Quantitative Aptitude Section in gkshort.in. Here we are making question test in Number Series, which is normal for all the aggressive exams. We have incorporated Some inquiries that are more than once asked in bank exams !!!

Directions(1-10) : In these inquiries, a number arrangement is given. Stand out number isn’t right which does not fit in the arrangement. Discover the wrong number.

**19 10.5 11.5 18.25 37.5 92.25 285.25**

A. 11.5

B. 274.25

C. 19

D. 94.75

E. None of these

**Answer – D. 94.75**

Clarification :

(19 * 0.5) + 1 = 10.5

(10.5 * 1) + 1 = 11.5

(11.5 * 1.5) + 1 = 18.25… .

Right Number: 94.75

**21 22 28 38 55 81 118**

A. 28

B. 81

C. 22

D. 118

E. None of these

**Answer – C. 22**

Clarification :

21 + 1² + 1 = 23

23 + 2² + 1 = 28

28 + 3² + 1 = 38 … ..

Right Number: 23

**3 4 10 32 136 685 4116**

A. 4

B. 32

C. 685

D. 4116

E. None of these

**Answer – B. 32**

Clarification :

3 * 1 + 1 = 4

4 * 2 + 2 = 10

10 * 3 + 3 = 33… ..

Right Number: 33

**90720 10080 1440 240 48 10 4**

A. 240

B. 48

C. 1440

D. 10

E. None of these

**Answer – D. 10**

Clarification :

4 * 3 = 12

12 * 4 = 48

48 * 5 = 240… ..

Right Number: 12

**3 5 10 12 17 23 24**

A. 5

B. 17

C. 24

D. 23

E. None of these

**Answer – E. None of these**

Clarification :

To begin with arrangement: 3, 10, 17, 24 (expanded by 7)

Second Series: 5, 14, 23 (expanded by 9)

Wrong Number: 12

Right Number: 14

**3 7 6 28 38 112 448**

A. 112

B. 448

C. 28

D. 38

E. None of these

**Answer – D. 38**

Clarification :

To begin with arrangement: 3, 6, 9 (expanded by 3)

Second Series: 7, 28, 112, 448 (increased by 4)

Wrong Number: 38

Right Number: 9

**650 148 130 108 32.5 28 10.8**

A. 28

B. 148

C. 650

D. 32.5

E. None of these

**Answer – A. 28**

Clarification :

To begin with arrangement: 650, 130, 32.5, 10.8 (isolated by 5, 4, 3)

Second Series: 148, 108, 68 (contrast : 40)

Wrong Number: 28

Right Number: 68

**4088, 2394, 1290, 520, 252, 78, 14**

A. 1290

B. 520

C. 78

D. 14

E. None of these

**Answer – B. 520**

Clarification :

7^4 – 6, 6^4 – 6, 5^4 – 5, 4^4 – 4…

Right Number: 620

**12 21 68 325 1538 12859**

A. 12

B. 68

C. 325

D. 1538

E. None of these

**Answer – D. 1538**

Clarification :

19 * 1 – (1 * 7) = 12

12 * 2 – (2 * 6) = 12

12 * 3 – (3 * 5) = 21

21 * 4 – (4 * 4) = 68 … ..

Right Number: 1838

**2580 645 322.5 80.62 45 10.07 5**

A. 322.5

B. 645

C. 45

D. 10.07

E. None of these

**Answer – C. 45**

Clarification :

2580 * 0.25 = 645

645 * 0.5 = 322.5

322.5 * 0.25 = 80.62

80.62 * 0.5 = 40.31 … ..

Right Number: 40.31

Share with your friends and write your comments

इस पोस्ट को देख कर अपना कमेन्ट अवश्य लिखें