Number Series Quiz for upcoming exams answers

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Solution :-

Q41. Answer is option C

Q42. Answer is option D

Explanation:

2, 6, 12, 20, ?, 36, 56

1+1² = 2

2+2² = 6

3+3² = 12

4+4² = 20

5+5² = 30

6+6² = 36

       7+7² = 56

Q43. Answer is option D

Explanation:

12*2+1 = 25

25*2–2 = 48

48*2+3 = 99

99*2–4 = 194

194*2+5 = 393

393*2–6 = 780

Q44.Answer is option B

Q45.Answer is option C

Q46. Answer is option D Explanation:

2, 2, 3, 6, 15, 45, 157.5, ?

2*1 = 2

2*1.5 = 3

3*2 = 6

6*2.5 = 15

15*3 = 45

45*3.5 = 157.5

    157.5*4 = 630

Q47.Answer is option D Explanation:

9*.5+.5 = 5

5*1+1 = 6

6*1.5+1.5 = 10.5

10.5*2+2 = 23

23*2.5+2.5 = 60

    60*3+3 = 183

Q48. Answer is option A

Q49. Answer is option C Explanation:

7*1+5 = 12

12*2+5 = 29

29*3+5 = 92

93*4+5 = 373

373*5+5 = 1870

Q50. Answer is option A