Question

The compound interest for Rs. 200 for 2 year at the rate of 10p.c.p.a. is Rs. ___________ *​

Answer 1

Step-by-step explanation:

GIVEN:-

Principal = Rs. 200

Rate of interest = 10%

Time = 2 yrs

TO FIND:-

The amount and the Compound interest

UNDERSTANDING THE CONCEPT:-

According to the question,

We have our principal, Rate of interest and time

So by this we can calculate our Amount as per our formula,

$a = p \times(1 + \frac{r}{100} ) {}^{t}$

REQUIRED ANSWER:-

$a = 200 \times (1 + \frac{10}{100} ) {}^{2}$

$a = 200 \times \frac{121}{100}$

$a = 242$

So, We got our amount as Rs. 242

Now we can find the compound interest by the formula,

Compound interest = Amount - Principal

C = 242 - 200

C = 42

Therefore the compound interest = Rs. 42

Answer 2

Step-by-step explanation:

GIVEN:-

Principal = Rs. 200

Rate of interest = 10%

Time = 2 yrs

TO FIND:-

The amount and the Compound interest

UNDERSTANDING THE CONCEPT:-

According to the question,

We have our principal, Rate of interest and time

So by this we can calculate our Amount as per our formula,

$a = p \times(1 + \frac{r}{100} ) {}^{t}$

REQUIRED ANSWER:-

$a = 200 \times (1 + \frac{10}{100} ) {}^{2}$

$a = 200 \times \frac{121}{100}$

$a = 242$

So, We got our amount as Rs. 242

Now we can find the compound interest by the formula,

Compound interest = Amount - Principal

C = 242 - 200

C = 42

Therefore the compound interest = Rs. 42