Question

Twitter borrowed rupees 1400 form of friend at 8% per annum simple interest on the money along with interest after 2 years how much money did she pay back​

Answer 1

AnswEr :

$\frak{Given}\begin{cases}\texttt{Principal = Rs. 1400}\\\texttt{Rate = 8\% p.a.}\\\texttt{Time = 2 years}\end{cases}$

$\bigstar\:\boxed{\sf Simple\: Interest=\dfrac{Principal \times Rate \times Time}{100}}$

$\rule{150}{1}$

$\underline{\bigstar\:\textsf{Calculation of Simple Interest :}}$

$\twoheadrightarrow\tt Simple\: Interest=\dfrac{Principal \times Rate \times Time}{100}\\\\\\\twoheadrightarrow\tt Simple\: Interest=\dfrac{1400 \times 8 \times 2}{100}\\\\\\\twoheadrightarrow\tt Simple\: Interest=14 \times 8 \times 2\\\\\\\twoheadrightarrow\tt Simple\: Interest=Rs. \:224$

$\rule{200}{2}$

$\underline{\bigstar\:\textsf{Calculation of Amount :}}$

$\longrightarrow\tt Amount = Principal + Simple\: Interest\\\\\\\longrightarrow\tt Amount = Rs1400 + Rs.\: 224\\\\\\\longrightarrow\underline{\boxed{\tt Amount = Rs. \:1624}}$

⠀

$\therefore\:\underline{\textsf{Twitter will return total amount of \textbf{Rs. 1624}}}.$

Answer 2

Answer:

$\large{\underline{\boxed{\star{\mathfrak\green{She \: paid \: back = Rs.1624}}}}}$

$\rule{200}{1}$

$\frak{Given}\begin{cases}\textbf{Principal(P) = Rs.1400}\\\textbf{Rate \: of \: interest (r) = 8\%}\\\textbf{Time(n) = 2 \: years}\\\textbf{Amount \:to \: be \: paid = ?}\end{cases}$

$\: \: \: \:{\underline{\dag{\sf{Calculation \: of \: Simple \: interest:-}}}}$

$\large{\boxed{\star{\sf\green{Simple \: interest = Prn }}}}$

$:\implies\sf Simple \: interest = 1400 \times 8 \% \times 2 \\\\ :\implies\sf Simple \: interest = 1400\times \dfrac{8}{100} \times 2$

$:\implies\sf Simple \: interest$ = $\large{\boxed{\sf\pink{ Rs.224 }}}$

*Amount to be paid :-

$:\implies\sf Total \: amount = Principal + Simple \: interest \\\\ :\implies\sf Total \: money = Rs.(1400 + 224)$

$:\implies\sf Total\: money$ = $\large{\boxed{\sf\green{Rs.1624}}}$

${\underline{\therefore{\textbf{She \: would \: pay \: back = Rs.1624}}}}$