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## How long will it take an investment to triple if compounded continuously?

To the nearest year, it will it take **18 years** for an investment to triple, if it is continuously compounded at 6% per year.

## How long it will take for money to triple if it is invested at 6.6% compounded monthly?

It will approximately take **18 years 10 months**.

## How long will it take money to triple at an APR of compounded annually?

It will take **about 12 years** to triple an amount of money earning 6.5% compounded annually.

## What rate of interest compounded annually is required to triple an investment in 15 years?

At a rate of interest of **3.86%** compounded annually investment will be tripled.

## How long will it take your money to triple at a rate of 9%?

For example, with a 9% rate of return, the simple calculation returns a time to double of **eight years**. If you use the logarithmic formula, the answer is 8.04 years—a negligible difference. In contrast, if you have a 2% rate of return, your Rule of 72 calculation returns a time to double of 36 years.

## How long will it take money to if it is invested at compounded?

The rule says that to find the number of years required to double your money at a given interest rate, you just **divide the interest rate into 72**. For example, if you want to know how long it will take to double your money at eight percent interest, divide 8 into 72 and get 9 years.

## How long will it take money to quadruple if it is invested at the following rates?

From there, we know that we want to quadruple our investment, so we can replace A and P to indicate that: 4 = 1(1 + . 033/2)^(2t). When we simplify this equation, we get 4 = 1.0165^(2t). Solving for t gives us **42.3545 years**.

## How long to the nearest year will it take an investment to double if it is continuously compounded at 13% per year?

1 Expert Answer

The easiest way to solve it is to take the ln(2) and divide it by the interest rate. For this problem, assuming that your rates are annual, this formula gives us ln(2)/. 13 = **5.33 years** and ln(2)/. 15 = 4.62 years.

## What is the rule of 115?

Rule of 115: If 115 is divided by an interest rate, the result is **the approximate number of years needed to triple an investment**. For example, at a 1% rate of return, an investment will triple in approximately 115 years; at a 10% rate of return it will take only 11.5 years, etc.

## What is the rate of return of an investment that triples in value in 11 years?

The Rules of 114 and 144

For example, at **10%** an investment will triple in about 11 years (114 / 10) and quadruple in about 14.5 years (144 /10).