Give the step-by-step reasoning process and then the final answer. Kaylin is five years younger than Sarah, who is twice as old as Eli, who is nine years older than Freyja. If Freyja is ten years old, how old is Kaylin?
Since Freyja is ten years old, Eli is 10 + 9 = 19 years old. Sarah's age is twice Eli's, then Sarah is 2 * 19 = 38 years old. Kaylin is five years younger than Sarah, then she is 38 - 5 = 33 years old.
The final answer: 33.