Question

In what time will rupees 1000 becomes Rs.1331 at 10% rate p.a. compound intrest.

Answer 1

$1331 = 1000 {(1 + \frac{10}{100} )}^{t} \\ \\ \frac{1331}{1000} = {(\frac{110}{100} )}^{t} \\ { (\frac{11}{10}) }^{3} = { (\frac{11}{10} )}^{t} \\ t = 3 \: years$
IN 3 YEARS RUPEES 1000 BECOMES RS.1331 AT 10% RATE P.A. COMPOUND INTREST.

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Answer 2

Solition:-

》given by:- A = 13321 , P = 1000 , r = 10%

》by formula :- A =p ( 1+r/100)^n

》 = 1331 = 1000(1+10/100)^n

》 = 1331/1000 = (11/10)^n

》 =( 11/10)^3 =( 11/10)^3

》 = n = 3

》the time is 3years

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