The 5 WHYs

Learn more about the 5 whys. Five whys (or 5 whys) is an iterative interrogative technique used to explore the cause-and-effect relationships underlying a particular problem. The primary goal of the technique is to determine the root cause of a defect or problem by repeating the question "Why?". Each answer forms the basis of the next question. The "five" in the name derives from an anecdotal observation on the number of iterations needed to resolve the problem.

The Rule of 72

Have you heard about the Rule of 72 ?

Imagine you could calculate how long it take to double your money just with a simple formula.

The rule of 72 is really simple and works as explained below
Doubling Time (# years) = 72/Interest Rate