Question

find the compound intredt on rs 800 at 5 percent annum for 2 years​

Answer 1

Answer:

• Amount is 882 rupees.
• Compound Interest is 82 rupees.

Step-by-step explanation:

Given:

• Principal = 800 rupees
• Time = 2 years
• Rate of interest = 5 %

To Find:

• Amount = ?
• C.I = ?

Solution:

We know that,

$\sf\large{{A = P( 1 + {\dfrac{r}{100}}^{n})}}$

Now, putting on formula

$\: \: \sf \implies \: a \: = 800 {(1 + \cancel\frac{ 5}{100}) }^{2} \\ \\ \: \: \sf \implies \: a = 800 {(1 + \frac{1}{20} )}^{2} \\ \\ \: \: \sf \implies \: a = 800 { (\frac{20 + 1}{20}) }^{2} \\ \\ \: \: \sf \implies \: a = 800 {( \frac{21}{20} )}^{2} \\ \\ \: \: \sf \implies \: a = \cancel 800 \times \frac{441}{ \cancel4 00} \\ \\ \: \: \sf \implies \: a = 441 \times 2 \\ \\ \: \: \sf \implies \: a = 882 \: rupees$

Hence,Amount is 882 rupees.

After finding amount now we will find Compound Interest.

As we know that,

$\rightarrow$ C.I = A - P

Now,putting on formula

•C.I = 882 - 800

• C.I = 82 rupees

Therefore, Compound Interest is 82 rupees.

Note:-

• A represent Amount.
• P represent Principal.
• C.I represent Compound Interest.
• n represent Time.
• R represent Rate of interest.