Question

In what time will rupees 1000 amount to rupees 1331at 10% per annum compound interest ?​

Answer 1

$\huge\bold\purple{Answer}$

Given, Principal P=1000, Amount A=1331 and Rate 10%

Let the time be n years.

Therefore, 1000(1+ 10010 ) n =1331⇒( 1011 ) n = 10001331 We know, ( 1011 ) 3 = 10001331 On comparing powers, we get n=3