Question

In how many years will the simple interest on a certain sum be 4.05 times the principal at 13.5 percent per annum?​

Answer 1

Answer:

30 years it takes to 4.05 times the principal amount

Answer 2

Answer:

t = 30 years                

Step-by-step explanation:

We are given that simple interest (I) will be 4.05 times the principal amount.

Let the principal amount(P) be x.

Then interest(I) = 4.05x

Rate  (R) = 4.05%

Time (t) = t

Using Simple interest formula,

I =  

4.05x =  

405x = 13.5xt

t =  

= 30 years

Hence, it will take 30 years to simple interest to be 4.05 times the principal amount.