Question

Rs. 2100 is lent at compound interest of 5% per annum for 2 years. Find the amount after two years.
A.Rs. 2300
B.Rs. 2315.25
C.Rs. 2310
D.Rs. 2320

Answer 1

Heya !

Here is your answer =>

Answer: option B

A = P*[1+ (r/100)]n

A = 2100*[1+(5/100)]2

A = 2100*[105/100]2

A = (2100*11025)/10000

Hence, Amount, A = Rs. 2315.25.

Hope this helps you

Answer 2

$\huge\boxed{\texttt{\fcolorbox{Red}{aqua}{Hey Mate!!!}}}$
P =Rs 2100
R = 5% p.a
T = 2 years = n = 2
As we know the formula
A = P(1+ R/100)^n
$= 2100( 1 + \frac{5}{100} ) {}^{2} \\ = 2100( \frac{21}{20} ) {}^{2} \\ = \frac{2100 \times 21 \times 21}{20 \times 20} \\ = \frac{9261}{4} \\ = 2315.25$
Hence Option B is your answer which is Rs 2315.25

$\large{\red{\boxed{\boxed{\boxed{\boxed{\boxed{\boxed{\boxed{\boxed{\boxed{\boxed{\underline{\underline{\underline{Hope \:it\:helps\: you}}}}}}}}}}}}}}}$