Number Series Quiz For Upcoming Exams Solution

Solution :-

11.Answer is option C

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Explanation:

2+12 +1= 4

4+22 +2= 10

    10+32 +3= 22

22+42 +4= 42

42+52 +5= 72

     72+62+6 = 114

 

12.Answer is option D

Explanation:

4* .5 = 2

2*1 = 2

2*2 = 4

4*4 = 16

16*8 = 128

 

13.Answer is option A

Explanation:

15/1 = 15

15*2 = 30

30/3 = 10

10*4 = 40

40/5 = 8

8*6 = 48

 

14.Answer is option D

Explanation:

2*1+1 = 3

3*2+2 = 8

8*3+3 = 27

27*4+4 = 112

112*5+5 = 565

 

15.Answer is option D

Explanation:

5*1+1 = 6

6*2-2 = 10

10*3+3 = 33

33*4-4 = 128

128*5+5 = 645

 

  1. Answer is option B

Explanation:

27, 50, 192, 1140, 9104, ?

27*2-4 = 50

50*4-8 = 192

192*6-12 = 1140

1140*8-16 = 9104

    9104*10-20 = 91020

  1. Answer is Option C

 

18.Answer is option A

Explanation:

6, 11, 32, 111, 464, ?

6*1+5 = 11

11*2+10 = 32

32*3+15 = 111

111*4+20 = 464

    464*5+25 = 2345

 

  1. Answer is option D Explanation:

2, 12, 36, 80, ?, 252, 392

12+13 = 2

22+23 = 12

32+33 = 36

42+43 = 80

52+53 = 150

62+63 = 252

    72+73 = 392

 

  1. Answer is option D

Explanation:

2, 6, 33, 49, 174, 210, ?

1+13 = 2

2+22 = 6

6+33 = 33

33+42 = 49

49+53 = 174

174+62 = 210

    210+73 = 553

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