Question 1152157
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16, 25, 36, 49, 64, ... = 4^2, 5^2, 6^2, 7^2, 8^2 ...<br>
So the next number MIGHT be 9^2 = 81; and it is very likely that that is the intended answer.<br>
But it should be noted that, with the way the problem is written, you could put ANY number next and it would be a valid sequence.<br>
In any problem like this, where the sequence of numbers is given without any information about what kind of sequence, you can only look for a pattern and GUESS what the intended answer is....<br>