Question

in what time sum of rupees 2,000 will become rupees 2420 if the interest rate is 10% compounded annually





Answer in detail plz​

Answer 1

Answer:

2years

Step-by-step explanation:

as we know A= p*(1+r/100)^n

here a= 2420, p= 2000, r = 10%

now 2420=2000*(1+10/100)^n

2420/2000= (1+1/10)^n

121/100= (11/10)^n

(11/10)^2= (11/10)^n

n= 2