Question

Principal - Rs450 Rate of interest - 4 1/3 % per annum Time - 3years 4 months Find the amount. Please help me ​

Answer 1

Given:

• Principal = Rs. 450
• Rate = $4\dfrac{1}{3} \%$ = $\dfrac{13}{3} \%$
• Time = 3 years 4 months = $3\dfrac{1}{3}$ = $\dfrac{10}{3}$ years

What To Find:

We have to find the amount.

How To Find:

To find amount we will use,

• $\sf{SI = \dfrac{P \times R \times T}{100}}$
• A = P + SI

Solution:

• Finding the simple interest.

Using the formula,

⇒ $\sf{SI = \dfrac{P \times R \times T}{100}}$

Substitute the values,

⇒ $\sf{SI = \dfrac{450 \times 13 \times 10}{100 \times 3 \times 3}}$

Cancel the zeros,

⇒ $\sf{SI = \dfrac{45\!\!\!\not0 \times 13 \times 1\!\!\!\not0}{1\!\!\!\not0\!\!\!\not0 \times 3 \times 3}}$

Multiply the numerator and denominator,

⇒ $\sf{SI = \dfrac{585}{9}}$

Divide 585 by 9,

⇒ SI = Rs. 65

• Finding the amount.

Using the formula,

⇒ A = P +SI

Substitute the values,

⇒ A = Rs. 450 + Rs. 65

Add the amount,

⇒ A = Rs. 515

∴ So, the amount will be Rs. 515.

Answer 2

Question:

Principal - Rs450 Rate of interest - $4\frac{1}{3} %$%  per annum Time - 3years 4 months Find the amount.

To find:

The amount

Given:

• Principle=450rs
• Time=3 yerars 4 months
• Rate of interest=$4\frac{1}{3} %$% per annum

We know that,

[1 year=12months]

so,

     $3\frac{4}{12}years = 3\frac{1}{3}years$

Solution:

$\to\frac{{450 * 3\frac{1}{3} * 4\frac{1}{3} }}{100}$ rs

$\to =450 * \frac{13}{3} * \frac{10}{3} *\frac{1}{100}$  rs

$\to = 65rs$

Check:

Simple interest=65rs

Thus,

The amount=(450 + 65)rs

                    =515rs

Used formula:

$\to Simple interest=\frac{Principle * Time * Rate of interest per annum}{100}$        

                                       

$\to Amount=(Simple interest + Principle)$

Answer:

The amount=515rs