Question

find the compound intrest and amount on-: rs 10000 in 3 years at 8 percent p.a.​

Answer 1

$\huge\underline{\overline{\mid\star{\sf{\pink{Solution :—}}\star\mid}}}$

$\large\color{blue}{Here,}$

• P = 10000 rs.
• n = 3 years
• R = 8 %

$\bold\color{red}{Now,}$

$\bold { \boxed{ \mathtt{ A \: = P( {1 + \frac{R}{100})}^{n} }}}$

$\mathbb{Substituting \: \:the\: \: values \: \:we \: \:get,}$

$A \: = 10000( {1 + \frac{8}{100}) }^{3} \\ \implies \: A \: = 10000( { \frac{108}{100} )}^{3} \\ \implies \: A \: = 10000 \times \frac{108 \times 108 \times 108}{1000000} \\ \implies \: A \: = 12597.12 \: \: rs$

$\bold\color{red}{Now,}$

$\bold \color{blue}{ \mathsf{C.I. \: = \: A - P}}$

$\: \: \: \: \: \: \: \: = 12597.12 - 10000$

$\: \: \: \: \: \: \: = \color{green}2597.12 \: \: \: rs$