Question

Find the interest on rupees 1820 from October 9, 2006 to December 21, 2006 at 7 1 by 2% per annum

Answer 1

Solution

Principal = ₹1820

Calculating Time

October 9, 2006 to December 21, 2006

October = 31days = 31-9 = 22days

November = 30days

December = 21days

Total no. of days = 22 + 30 + 21 = 73days.

Now, converting days in to years.

$\sf{Years=\dfrac{Total \: no. \: days}{365}}$

$\sf{Years=\cancel\dfrac{73}{365}= \dfrac{1}{5}}.$

Rate = $7\dfrac{1}{2}=\dfrac{15}{2}$

Calculating Interest

${\pink{\bigstar\:{\underline{\boxed{\bf{I= \dfrac{P \times R \times T}{100}}}}\:\bigstar}}}$

$\sf\implies{I= \dfrac{1820 \times \dfrac{15}{2}× \dfrac{1}{5}}{100} }$

$\sf\implies{I= \dfrac{1820 \times 15 \times 1}{100 \times 2 \times 5} }$

$\sf\implies{I= \dfrac{273}{10}}$

$\sf\implies{I=₹27.3}$

∴ Interest is ₹27.3.

$\rule{200pt}{1pt}$

Additional Information

Amount = P + I

P = A - I

I = A - P

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

$\sf{}A=P\Bigg(1+\dfrac{R \times T}{100}\Bigg)$

${\orange{\star \: {\underline{\rule{170pt}{3pt}} \: \star}}}$

Answer 2

Answer:

October 1 to December

Step-by-step explanation:

explanation