In the year 1989, Luke's age was 3 times Rachel's age and Rachel's age was 3 times Dan's age. If Dan

In the year 1989, Luke's age was 3 times Rachel's age and Rachel's age was 3 times Dan's age. If Dan's age was n, how old were Rachel and Luke?

Rachel's age = 3 * Dan's age
Rachel's age = 3n

Luke's age = 3 times Rachel's age
Luke's age = 3(3n)
Luke's age = 9n