Question

ANSWER THE ABOVE QUESTION ASAP...​

Answer 1

$\Large\underline{\underline{\sf \green{Given}:}}$

• Principal (P) = Rs.30000

• Rate (R) = 7%

• Compound Interest (CI) = Rs.4347

$\Large\underline{\underline{\sf \green{To\:Find}:}}$

• Time Period (T) = ?

$\Large\underline{\underline{\sf \green{Formula\:Used}:}}$

${\boxed{\sf \red{Compound\: Interest=Amount-Principal}}}$

${\boxed{\sf \red{A=P\left(1+\dfrac{R}{100}\right)^n}}}$

$\Large\underline{\underline{\sf \green{Solution}:}}$

Compound Interest = Amount - Principle

Amount = 4347 + 30000

Amount (A) = Rs.34347

$\implies{\sf 34347=30000\left(1+\dfrac{7}{100}\right)^n-1 }$

$\implies{\sf \dfrac{34347+30000}{30000}=\left(\dfrac{107}{100}\right)^n}$

$\implies{\sf \dfrac{11449}{10000}=\left(\dfrac{107}{100}\right)^n }$

$\implies{\sf \dfrac{(107)^2}{(100)^2}=\left(\dfrac{107}{100}\right)^n }$

$\implies{\sf \left(\dfrac{107}{100}\right)^2=\left(\dfrac{107}{100}\right)^n}$

$\implies{\sf n=2 \:years}$

$\Large\underline{\underline{\sf \green{Answer}:}}$

⛬ Time period will be 2 years.

Answer 2

Answer:

2 years

Step-by-step explanation:

Compound interest on Rs. 30,000 at 7% per annum is Rs. 4347

A = P(1 + r/100)^n

=> 30000 + 4347 = 30000(1 + 7/100)^n

=> 34347 = 30000(107/100)^n

=> 34347/30000 = (107/100)^n

=> 11449/10000 = (107/100)^n

=> (107/100)^2 = (107/100)^n

=> n = 2

Therefore, time = 2 years.