2 Answers

TownCube · Answer 1 · 2021-12-07T23:24:55+0000

25 to 36 is 11
36 to 49 is 13
49 to 64 is 15
The difference is it’s going up by 2 each time so ...
64 + 17 is 81
The next number is 81

Ongenz · Answer 2 · 2021-12-08T22:25:57+0000

Answer:

81

Explanation:

25, 36, 49, 64, ...

36 - 25 = 11

49 - 36 = 13 = 11 + 2

64 - 49 = 15 = 13 + 2

64 + 15 + 2 = 81

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