Based on the fact that Kayden is the youngest and their ages are consecutive and add up to 90, the Kayden is 21.
How old is Kayden?
To find Kayden's age, assume that it is x and use the formula:
90 = x + (x + 1) + (x +2) + (x +3)
Solving for x gives:
90 = 4x + 6
4x = 90 - 6
x = 84 / 4
x = 21
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