# At what rate of markup would a sum of money become double in 20 years?

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Answer Expert Verified At 5% simple interest, a sum of money doubles itself in 20 years.

**Alex K.**Date created:

**May 15, 2022**

## What rate of return do you need to double your money in 10 years?

7.2 percentThe math rule of 72 tells you how long it will take to double your money at a given rate. The interest rate times the number of years to double compounded equals 72. So to double an investment in 10 years, divide 72 by 10. A mutual fund needs an average annual return of 7.2 percent to double in 10 years.

## What interest rate doubles your money in 7 years?

At 10%, money doubles every 7.2 years and when you divide 7.2 by 10%, you get 72. This rule of thumb helps you compute when your money (or any unit of numbers) will double at a given interest (growth) rate.

## How many years would it take your money to double A at 10% interest compounded yearly?

7.2 yearsThe rule states that the amount of time required to double your money can be estimated by dividing 72 by your rate of return. 1 For example: If you invest money at a 10% return, you will double your money every 7.2 years. (72/10 = 7.2)

## At what rate of simple interest will a sum of money double itself in 8 years?

12.5% per annumAt what rate percent per annum will a sum of money double in 8 years. Rate = [(100 x P)/ (P x 8)]% = 12.5% per annum.

## At what rate of simple interest will money double itself in 7 years?

Answer. It take about 14 years for four folding in which doubling the sum of money takes place in 7 years.

## How long will it take a certain sum of money to triple itself?

A sum of money at simple interest double itself in 4 years. in how many years will it triple itself... At what rate percent per annum simple interest, will a sum of money triple itself in 25 years?

## What rate of return do I need to double my money in 5 years?

You divide 72 by 10 percent to get the time it takes for your money to double. The “Rule of 72” is a rule of thumb that gives approximate results. It is most accurate for hypothetical rates between 5 and 20 percent.

## At what annual rate of interest compounded yearly Will money double in 8 years?

9% per yearThe Rule of 72 indicates than an investment earning 9% per year compounded annually will double in 8 years.

## At what interest rate will a sum of money double itself in 3 years if the interest is compounded annually?

Answer. ☆☆☆Let the rate percent per annum be R. Thus, the required rate is 25.99% per annum.

## At what percent of simple interest sum of money will double itself in 7 years?

Hence, if we have 2x after 7 years, we'll get its double after the same amount of time (4x at t = 14).

Hope it's clear..

## Related Question Answers

#### GhostCat

Professor### At what percent simple interest will a sum of money double itself in 16 years?

541%

#### Pilacey

Professor### At what rate does the simple interest a sum of money Triple itself in 25 years?

8% Was this answer helpful?

#### FaNo_FN

Professor### At what rate of interest a sum of money doubles itself in 10 years in simple interest?

So rate per annum = 10%.

#### Achim Zeileis

Professor### At what rate of interest a sum of money doubles itself in 10 years?

In how many years will a sum of money double itself with the rate of 10% per annum simple interest? Here, we have R = 10% and have to calculate t for the sum of the money (that is P) to double. Hence, it will take 10 years for the sum of money to double itself with the rate of 10% per annum simple interest.

#### Zon

Professor### At what rate of interest will a sum of money double in 5 years?

14.4% per yearSimilarly, if you want to double your money in five years, your investments will need to grow at around 14.4% per year (72/5). If your goal is to double your invested sum in 10 years, you should invest in a manner to earn around 7% every year. Rule of 72 provides an approximate idea and assumes one time investment.

#### aled

Professional### At what rate of interest will a sum of money double itself in 20 years?

Answer Expert Verified At 5% simple interest, a sum of money doubles itself in 20 years..

#### Alex Howansky

Professional### At what rate of interest will a sum of money double itself in 5years?

Answer. R =? At 5% simple interest, a sum of money doubles itself in 20 years.

#### Atul Arvind

Professional### At what rate of interest will a sum of money doubles itself in 50 3 years?

Time ; t = 50 3 years so , simple interest , I = p × r × t 100 = p × r × 50 3 × 100 = pr 6 So sum of money after 50 3 years = p + I = p + pr 6 Now according to the question we have ; Sum of money becomes double after 50 3 years , so we have ; 2 p = p + pr 6 ⇒ p = pr 6 ⇒ r = 6 Therefore rate of interest is 6 % .

#### Prayson W. Daniel

Professional### At what rate of percent compound interest does a sum of money becomes 4 times itself in 2 years?

Since it is compound interest, the Principal for the second year would be 2P. This again doubles itself in another year because Interest rate is 100%. So at the end of two years it becomes 4 P. Hence at an interest rate of 100% , the sum of money becomes 4 times itself.

#### Philip Fourie

Professional### At what rate of simple interest a sum of money will be doubled of itself in 15 years?

If the sum doubles (x2) in 15 years, then it to become 2*2*2 = 8 times as large it should double three times, so three 15 years time period are needed, which is 3*15 = 45 years.

#### Josh Kelley

User### At what rate of simple interest a sum of money will be doubled on itself in 15 years?

If the sum doubles (x2) in 15 years, then it to become 2*2*2 = 8 times as large it should double three times, so three 15 years time period are needed, which is 3*15 = 45 years.

#### JPV

User### At what rate of simple interest in 4 years a sum of money will become 4 times the principal?

5% per annumA sum of money become four times at the simple interest rate of 5% per annum in 60 years .

Formula : Hence a sum of money become four times at the simple interest rate of 5% per annum in 60 years ..

#### Seldaek

User### At what rate of simple interest in 4 years a sum of money will become four times the principal?

5% per annumA sum of money become four times at the simple interest rate of 5% per annum in 60 years . Formula : Hence a sum of money become four times at the simple interest rate of 5% per annum in 60 years .

#### Ted

User### At what rate of simple interest will a sum of money amount to 7 4 of itself in 6 years?

700/4 in 6 years. Interest = (700/4)-100 = Rs. 300/4; Hence, Rate = Total interest/ given time = 300/4*6 = 12(1/2)%.

#### Avi Flax

User### At what rate of simple interest will a sum of money double itself in 10 years?

10% per annumAnswer. it means at the rate of 10% per annum sum will double itself in 10 years .

#### DeborahK

Guest### At what rate of simple interest will a sum of money doubles itself in 1 year?

Here, we have R = 10% and have to calculate t for the sum of the money (that is P) to double. Hence, it will take 10 years for the sum of money to double itself with the rate of 10% per annum simple interest.

#### Aminah Nuraini

Guest### At what rate of simple interest will a sum of money doubles itself in 10 years?

10% per annumAnswer. it means at the rate of 10% per annum sum will double itself in 10 years .

#### tmhao2005

Guest### At what rate of simple interest will a sum of money doubles itself in 20 years?

Answer Expert Verified At 5% simple interest, a sum of money doubles itself in 20 years.

#### CodesInChaos

Guest### At what rate of simple interest will a sum of money doubles itself in 8 years?

12.5% per annumWhere P is principal amount, R is rate of interest and T will be time period. Hence, the rate of interest to double a money in 8 years will be 12.5% per annum.

#### glglgl

Guest### At what rate of simple interest will a sum of money treble itself in 25 years?

Answer. rate of interest is 8%.

#### bikram

Guest### At what rate of simple interest will a sum of money triple in 10 years?

Answer. Answer: So rate of percentage per annum must be 12.5% to triple the sum.

#### ErikEJ

Guest### At what rate of simple interest will a sum of money triples itself in 10 years?

Answer. Answer: So rate of percentage per annum must be 12.5% to triple the sum.

#### i3arnon

Guest### At what rate of simple interest will sum of money doubles itself in 20 years?

5%At 5% simple interest, a sum of money doubles itself in 20 years.

#### Aplet123

Guest### At what rate per annum will sum of money double in 16 years?

= P and T = 16 yrs. Rate = (100 x P)/(P*16)% = 6 ¼ % p.a.

#### SeaBean

Guest### At what rate per cent of simple interest will a sum of money double itself in 12 years?

721%

#### Marcello de Sales

Guest### At what rate per cent per annum will a sum of money double itself in eight years?

12.5% per annumHence, the rate of interest to double a money in 8 years will be 12.5% per annum.

#### TarkaDaal

Guest### At what rate percent a sum of money doubles itself in 15 years?

what is the rate of interest ? => r = 100/15 = 20/3 % = 6.66 %.

#### xanatos

Guest### At what rate percent compound interest does a sum of money becomes 16 times in 4 years?

Step-by-step explanation: After 4 years, the amount is 16 times the principal. Here, n = 4 years. Amount = 16 P.

#### Sergio del Amo

Guest### At what rate percent compound interest does a sum of money becomes 27 times in 3 years?

Here, A is the total amount. So, rate of interest is 200%.

#### JPBlanc

Guest### At what rate Percent of simple interest per annum will a sum of money triple in 6 years?

Answer: 33 1/3 % p.a.

#### tmg

Guest### At what rate Percent of simple interest will a sum of money double itself in 12 years?

721%

#### whiletrue

Guest### At what rate Percent of simple interest will a sum of money double itself in 15 years?

In your case, a rate of ~4.8% would double a sum in ~15 years. R=100*I/P*N=100*P/P*15=100/15=20/3=6.666… =6.67%.

#### Gereon

Guest### At what rate Percent of simple interest will a sum of money double itself in 2 years?

So rate of interest should be 3 (1/3) to get some of money double itself..

#### Brian Campbell

Guest### At what rate Percent of simple interest will a sum of money double itself?

=PRT100. Where P is principal amount, R is rate of interest and T will be time period. Hence, the rate of interest to double a money in 8 years will be 12.5% per annum.

#### Dan D.

Guest### At what rate Percent of simple interest will a sum of money doubles itself in 16 years?

541%

#### Rick Hanlon II

Guest### At what rate Percent of simple interest will a sum of money doubles itself in 20 years?

5%Answer Expert Verified At 5% simple interest, a sum of money doubles itself in 20 years.

#### Johnsyweb

Guest### At what rate percent on simple interest will a sum of money double itself in 30 years *?

So rate of interest should be 3 (1/3) to get some of money double itself.

#### Pᴇʜ

Guest### At what rate percent per annum simple interest will a sum of money double itself in 10 years?

Answer. it means at the rate of 10% per annum sum will double itself in 10 years .

#### Johannes

Guest### At what rate percent per annum simple interest will a sum of money Triple itself in 20 years?

Let, the rate of simple interest per annum be R%. Now, I = A- P = 6050 - 5000 = 1050.

#### Alexander Bird

Guest### At what rate percent per annum simple interest will be a sum of money double itself in 16 years?

641%

#### Johan

Guest### At what rate percent per annum will the simple interest on a sum of money will be 2 by 5 of the sum in 10 years?

Simplifying the above equation, we have y10=25. Cross multiplying the terms of the above equation, we have 5y=2×10=20. Rearranging the terms of the above equation, we have y=205=4. Hence, the rate of interest per annum is 4, which is option (c).

#### Motti

Guest### At what rate percent will a sum of money double in 16 years?

Let principal = P.

Then, S.I.

= P and T = 16 yrs.

Rate = (100 x P)/(P*16)% = 6 ¼ % p.a..

#### Luke

Guest### At what rate percent will a sum of money double itself in 5years?

Answer. R =? At 5% simple interest, a sum of money doubles itself in 20 years.

#### Hedayatullah Sarwary

Guest### At what rate percent will a sum of money doubles itself in 8 years?

12.5%At what rate percent per annum will a sum of money double in 8 years. Rate = [(100 x P)/ (P x 8)]% = 12.5% per annum.

#### Roman R.

Guest### At what rate percent will a sum of money treble itself in 16 years at SI?

Answer. Let, the SUM = Rs X and RATE = r%. TIME (t) = 16 years.

#### Mol0ko

Guest### At what rate percent will a sum of money treble itself in 5 years?

Let the number of years be denoted as n. Given the principle amount triples itself in 5 years. r = 0.4 = 40%.

#### Henk Mollema

Guest### At what rate will a sum of money doubles itself in 10 years?

Here, we have R = 10% and have to calculate t for the sum of the money (that is P) to double.

Hence, it will take 10 years for the sum of money to double itself with the rate of 10% per annum simple interest..

#### Gyrocode.com

Guest### At what simple interest rate will a sum of money be doubled in 5 years?

Alternatively you can calculate what interest rate you need to double your investment within a certain time period.

For example if you wanted to double an investment in 5 years, divide 72 by 5 to learn that you'll need to earn 14.4% interest annually on your investment for 5 years: 14.4 × 5 = 72..

#### Spacedman

Guest### At what simple interest rate will a sum of money become four times of itself in 15 years?

20%The rate at which a sum becomes four times of itself in 15 years at S.I., will be : A. = 20%.

#### Mayank Jaiswal

Guest### At what simple interest rate will an amount of money double itself in 12 years?

To use the Rule of 72 in order to determine the approximate length of time it will take for your money to double, simply divide 72 by the annual interest rate. For example, if the interest rate earned is 6%, it will take 12 years (72 divided by 6) for your money to double.