Final answer:
King Tutankhamen reigned for approximately 10 years and died when he was around 19 years old.
Step-by-step explanation:
King Tutankhamen, also known as King Tut, reigned during the New Kingdom period of Ancient Egypt. He became pharaoh at the young age of nine, and his reign lasted for approximately ten years, from 1332 BCE to 1323 BCE. King Tutankhamen died when he was around 19 years old, making his death year around 1323 BCE.
Learn more about King Tutankhamen's reign and death