Question

A person borrowed a sum of 20000 for 2yr on simple interest.he had to repay 24800 in including interest after 2yr the rate of interest per annun was

Answer 1

Step-by-step explanation:

Given:

• Amount
• Sum
• Time

To Find:

• Rate per annum

Solution:

SI=Amont-Sum

→24800-20000

→Rs.Rs.4800

Rate percent=SI×100/P×T

=> 4800×100/20000×2

=>480000/40000

=>12%

Answer 2

Step-by-step explanation:

$\red{\mid{\fbox{\tt{Given:}}\mid}} \:$

Principal = Rs. 20,000

Time = 2 years

Amount = 24,800

$\red{\mid{\fbox{\tt{To \: Find:}}\mid}} \:$

Rate of Interest

$\red{\mid{\fbox{\tt{Solution:}}\mid}} \:$

→ Amount - Principal = Simple Interest

→ 24,800 - 20,000 = 4,800

Formula being applied :

$\begin{lgathered}\longmapsto \rm { {\dfrac{P \times R \times T \: }{100}} =Simple \: \: Interest \: }\\\end{lgathered} \:$

Where,

• P stands for Principal
• R stands for Rate of Interest
• T stands for Time

Let the rate of interest be x.

$\begin{lgathered}\longmapsto \rm { {\dfrac{20000 \times x \times 2}{100}} = 4800 }\\\end{lgathered} \:$

$\begin{lgathered}\longmapsto \rm { \cancel{\dfrac{40000 x}{ 100}} = 4800 }\\\end{lgathered} \:$

$\begin{lgathered}\longmapsto \rm {400x = 4800}\\\end{lgathered} \:$

$\begin{lgathered}\longmapsto \rm { x = \cancel{\dfrac{4800}{400}} }\\\end{lgathered} \:$

$\begin{lgathered}\longmapsto \rm { x = 12\% }\\\end{lgathered} \:$

∴ Rate of Interest is 12 %.

$\red{\mid{\fbox{\tt{More \: \: Information :}}\mid}} \:$

$\:\underline{\textbf{Profit and Loss Formulas :}} \:$

$S.P. = \sf \bigg\lgroup\dfrac{100 + Profit \%}{100}\bigg\rgroup \times \: 100$

$C.P. = \sf \dfrac{S.P. \times 100}{100 + Profit \%}$

$Profit = \sf \dfrac{Profit \% \times C.P.}{100}$

$Profit \: (gain) = S.P. - C.P.$

$\displaystyle{Profit \%= \frac{ \:Profit \: }{C.P \: \: } \times100 }$

Please note:

Kindly view answer from website (brainly.in) if not visible on app.