Maths-

General

Easy

Question

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

Hint:

### Use the formula of total amount and then find the rate of interest .

## The correct answer is: 10 years.

### Complete step by step solution:

Formula for total amount = A = P + SI…(i)

where is the total amount, is the principal amount and is simple interest .

Here, A = 2P and

where P is Principal amount, T is number of years and R is the rate of interest.

We have, T = 10 (given) and R = ?

On substituting the known values in (i), we have .

Subtract P from both sides.

Then we have,

On further simplifications, we have

At 10% per annum the sum amount will double itself in 10 years.

### Related Questions to study

Maths-

### Find the solution of the system of equations.

y = 3x

It is not necessary for every set of equation to have solutions. If you graph them and get not intersecting points, then they have no real solutions.

### Find the solution of the system of equations.

y = 3x

Maths-General

It is not necessary for every set of equation to have solutions. If you graph them and get not intersecting points, then they have no real solutions.

General

### Choose the synonyms of 'research'

### Choose the synonyms of 'research'

GeneralGeneral

Maths-

### What sum will yield an interest of Rs. 277.50 for 3 years at 12% per annum?

### What sum will yield an interest of Rs. 277.50 for 3 years at 12% per annum?

Maths-General

General

### Which of the following is an example of parallel structure?

### Which of the following is an example of parallel structure?

GeneralGeneral

Maths-

### Find the solution of the system of equations.

### Find the solution of the system of equations.

Maths-General

Maths-

### Consider this simple bivariate data set.

a) Draw a scatter plot for the data.

b) Describe the correlation between x and y as positive or negative.

c) Describe the correlation between x and y as strong or weak.

d) Identify any outliers.

### Consider this simple bivariate data set.

a) Draw a scatter plot for the data.

b) Describe the correlation between x and y as positive or negative.

c) Describe the correlation between x and y as strong or weak.

d) Identify any outliers.

Maths-General

Maths-

### Find the solution of the system of equations.

y = 3x - 5

You could solve a set of equations by graphing them. The points where the graphs intersect are the solutions.

### Find the solution of the system of equations.

y = 3x - 5

Maths-General

You could solve a set of equations by graphing them. The points where the graphs intersect are the solutions.

General

### How many syllables in 'poem'.

### How many syllables in 'poem'.

GeneralGeneral

Maths-

### Consider this simple bivariate data set.

a) Draw a scatter plot for the data.

b) Describe the correlation between x and y as positive or negative.

c) Describe the correlation between x and y as strong or weak.

d) Identify any outliers.

### Consider this simple bivariate data set.

a) Draw a scatter plot for the data.

b) Describe the correlation between x and y as positive or negative.

c) Describe the correlation between x and y as strong or weak.

d) Identify any outliers.

Maths-General

Maths-

### Find the amount of Rs. 6000 lent from 18 th January 2006 to 12 th June 2006 at 9% per annum?

### Find the amount of Rs. 6000 lent from 18 th January 2006 to 12 th June 2006 at 9% per annum?

Maths-General

General

### The first day of spring after a long, cold, winter in always a magical experience

### The first day of spring after a long, cold, winter in always a magical experience

GeneralGeneral

Maths-

### The amounts of certain sum of money with simple interest at certain rate of interest are Rs. 5440 in 3 years and Rs. 6440 in 5 years. Find the sum and rate of interest?

### The amounts of certain sum of money with simple interest at certain rate of interest are Rs. 5440 in 3 years and Rs. 6440 in 5 years. Find the sum and rate of interest?

Maths-General

Maths-

### Find the solution of the system of equations.

y = 13 - 2x

### Find the solution of the system of equations.

y = 13 - 2x

Maths-General

General

### Choose the words with suffix ness

### Choose the words with suffix ness

GeneralGeneral

General

### Which sentence has the same meaning?

"It was nice of you to helps tie the boy's shoe”

### Which sentence has the same meaning?

"It was nice of you to helps tie the boy's shoe”

GeneralGeneral