Question

67. Complete the series.
1, 3, 7, 13, 21, ?
(A) 29
(B) 31
(C) 27
(D) 33

Answer 1

$\huge\mathfrak\blue{Answer}$

The next term of the series will be -

31

As we see along the series addition of multiple of 2 is going on .

1+2 = 3

3 +2(2) = 7

7 +2(3) = 13

13 +2(4) = 21

So next will be

21 +2(5) = 31

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Answer 2

Answer:

1,3,7,13,21,31

hope it helps u