Solve the Problem. -The Earth, Jupiter, Saturn, and Neptune All Revolve Around the Revolve

Multiple Choice

Solve the problem.
-The earth, Jupiter, Saturn, and Neptune all revolve around the sun. The earth takes 1 year, Jupiter approximately 12 years, Saturn approximately 30 years, and Neptune approximately 165 years to make a complete revolution. How often will Saturn and Neptune appear in the same direction in the night sky as seen from earth?
[Hint: Find the LCM of 30 and 165]

A) Every 330 years
B) Every 990 years
C) Every 4950 years
D) Every 1650 years