Mr. Anil has a recurring deposit account. He deposits a certain amount of money per month for 2 years. If he received an interest whose value is the double of the deposit made per month, then find the rate of interest.

A recurring deposit is also known as:

1. maturity deposit

2. cumulative time deposit

3. regular saving deposit

4. investment fund deposit

In a recurring deposit, the maturity value is given by:

1. $(P \times n) + I$

2. $P \times n \times I$

3. $\dfrac{P \times n \times I}{100}$

4. $\dfrac{(P \times n) + I}{100}$

₹ P is deposited for n number of months in a recurring deposit account which pays interest at the rate of r% per annum. The nature and time of interest calculated is :

1. compound interest for n number of months

2. simple interest for n number of months

3. compound interest for one month

4. simple interest for one month