Darcie is 4 years old. She is 1/6 as old as her mother and her mother is 4/5 as old as her father. How old is her father?
A step-by-step solution is:
30
Darcie's mother is 4 * 6 = 24 years old.

Darcie's father is 24 / 4 * 5 = 30 years old.

.

So, the final answer is 30