Question

Q. 1, 9 , 13 , 21 , 25, ?.​

Answer 1

Answer:

33

Step-by-step explanation:

1+8=9

9+4=13

13+8=21

21+4=25

25+8=33

hence answer is 33

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Answer 2

Answer:

33

because between 1and9 there is a gap of 8 numbers and between 9and13 thereis 4 numbers gap

so ,it repeats same like that so answer is 33