Number-Series

Question 1
Find the number that can replace question mark (?) in the series given below
21, 22, 26, 35, 51, ?
A
62
B
66
C
86
D
76
Question 2
Identify the numbers that occurs in the series 1,7,17,31,49,...................
A)74
B)95
C)97
D)127
E)161
Choose the correct answer from the options given below :
A
(A),(B),(C) only
B
(C),(D),(E) only
C
(E),(B),(A) only
D
(C),(D),(B) only
There are 2 questions to complete.

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