Question

Find CI on Rs 12600 for 2 years at 10% per annum compounded annually.​

Answer 1

$\Huge\sf\red{\underline{\underline{Given}}} \::$

$\begin{cases}\sf\gray{Principal = 12600} \\ \sf\gray{Time = 2\: Years} \\\sf\gray{Rate = 10\%\:per\:annum}\end{cases}$

$\Huge\sf\blue{\underline{\underline{To\:Find}}}\::$

$\begin{cases}\sf\gray{Compound \: Interest}\end{cases}$

$\Huge\sf\pink{\underline{\underline{Solution}}}\::$

$\boxed{ \sf{\orange{ A = P \bigg(1 + \frac{r}{100}\bigg)^n }}}$

$\leadsto\:\:\: \sf \purple {A = 12600 \bigg(1 + \dfrac{10}{100}\bigg)^2}$

$\leadsto\:\:\: \sf \green {12600 \bigg(1 + \dfrac{1}{10}\bigg)^2}$

$\leadsto\:\:\: \sf \purple {12600 \bigg(\dfrac{10 + 1}{10}\bigg)^2}$

$\leadsto\:\:\: \sf \green {12600 \bigg(\dfrac{11}{10}\bigg)^2}$

$\leadsto\:\:\: \sf \purple {12600 \times \dfrac{121}{100}}$

$\leadsto\:\:\: \sf \green {126 \times 121}$

$\leadsto\:\:\: \underline \mathsf \purple {15246}$

$\star\:\sf\underline\red{ Amount \: after \: 2 \: years = Rs\:15,246}$

$\Large\sf\gray{ Now,}$

$\boxed{ \sf{\orange{ Amount \: = \: Principal \: + \: Interest }}}$

$\leadsto\:\:\:\mathsf \purple {15246 \: = \: 12600 \: + \: Interest}$

$\leadsto\:\:\:\mathsf \green {15246\: - \:12600 \: =\: Interest}$

$\leadsto\:\:\: \mathsf \purple {2646 \: = \:Interest}$

$\leadsto\:\:\:\underline \mathsf \green {Interest \: = \: 2646}$

$\star\:\sf\underline\red{Hence,\: Compound\: Interest \:=\:Rs\:2,646}$

Answer 2

Answer:

go through the file attached