Question

എത്ര കാലം കൊണ്ട് 2400 രൂപ 5% കൂട്ടുപലിശ നിരക്കിൽ 2646 രൂപയാകും?

• A. 2
• B. 5
• C. 6
• D. 3

Answer 1

Answer:

A. 2

P = 2400

A = 2646

I = A - P = 2646 - 2400 = 246

R = 5%

$A = P\times(1 + \frac{R}{100})^n$

2646 = $2400\times(1 + \frac{5}{100})^n$

$\frac{2646}{2400} = (\frac{105}{100})^n$

$\frac{882}{800} = (\frac{105}{100})^n$

$\frac{441}{400} = (\frac{21}{20})^n$

$\frac{21^2}{20^2} = (\frac{21}{20})^n$

n = 2