Multiple choice How old is the Methuselah tree? (The oldest tree in the world) About 600 years old About 2000 years old About 5000 years old About 12000 years old Reveal answer Fill a bubble to check yourself C Correct answer Explanation The Great Basin bristlecone pine known as Methuselah is estimated to be approximately 4,850 years old. This makes 5,000 years the most accurate approximation among the choices.