The rule of 70 explains:
A) how many stocks you need to completely diversify your portfolio.
B) how much money you need to invest monthly in order to retire comfortably.
C) how long it takes an investment to double in value.
D) how long it takes for an investment to achieve the efficient markets hypothesis.

Question

Quizplus · Accepted Answer

The rule of 70 is a quick and easy way to estimate how long it takes for an investment to double in value. You simply divide 70 by the expected annual rate of return. For example, if an investment is expected to return 7% annually, it would take approximately 10 years (70/7 = 10) for that investment to double in value.

The Rule of 70 Explains