Question

find the interest to be paid at the end of 3 years when the principal is equal to 1800 at 12%​

Answer 1

Appropriate Question:

find the Amount to be paid at the end of 3 years when the principal is equal to 1800 at 12%

Given:

• Principle = Rs.1800
• Rate = 12 %
• Time = 3 years.

To Find:

• Simple interest = ?

Formula used:

$\\\bigstar \: \: {\underline{\boxed {\bf{\color{blue}{Simple \: Interest=\dfrac{ P \times R \times T}{100}}}}}}$

where,

• P = Rs.1800
• R = 12 %
• T = 3 years

Solution:

we know that ,

$\\\dashrightarrow \: \sf{ \dfrac{P \times R \times T}{100}}$

Substituting values from above formula;

★ calculating the Simple Interest :-

$\\{\sf\dashrightarrow S.I =\dfrac{1800\times 12 \times 3}{100}}$

${\sf\dashrightarrow S.I =\dfrac{\cancel{1800}\times 12 \times 3}{\cancel{100}}}$

${\sf\dashrightarrow S.I =18\times 12 \times 3}$

${\sf\dashrightarrow S.I =18\times 36}$

${\sf\dashrightarrow S.I =500}$

${\bigstar{\red{\underline{\boxed {\sf{S.I = 648}}}}}}$

∴ The simple interest of the given sum is 648 .

★ calculating Amount to be paid

$\\{\dashrightarrow{\sf{{A=P-SI}}}}$

${\dashrightarrow{\sf{{A= 1800- 648 }}}}$

${\dashrightarrow{\sf{A =1,152 }}}$

${\bigstar{\red{\underline {\boxed {\sf{C.I=₹ \; 1,152 }}}}}}$

Hence, the compound interest is ₹ 1,152

Answer 2

Answer:

Hence, value of interest will be Rs. 648 while the value of Amount will be Rs. 2448

Step-by-step explanation:

In context to question asked,

We have to determine the value of interest paid.

As per question,

We have,

P = Rs. 1800

Rate = 12% annum

Time = 3 years

As we know that,

The value of simple interest can be determined by using the formula,

$SI = \frac{PRT}{100}$

So, for determining the value of Interest we will put the value of P, R and T given in the question in above formula,

Thus we will get,

$SI = \frac{1800 \times 12\times 3}{100} \\= 18 \times 12\times 3\\=>18 \times 36\\=>Rs.\:648$

Hence, value of simple interest will be Rs. 648

And value of amount can be determined by using the formula

$Amount = Principal + SI$

So, value of amount will be $Rs.\:1800+Rs.\:648 = Rs.\:2448$