Potassium Has a Half-Life of 12 Hours $\frac { 1 } { 10 }$

Short Answer

Potassium has a half-life of 12 hours. How long will it take for a quantity of potassium to decay to $\frac { 1 } { 10 }$ its original size?
Enter your answer as a real number rounded to one decimal place (no units).