Question

I will definitely make brain list please give me the answer of question number 4 and pic please give me the answer with solution I will definitely make brainlist list and I'll send a promise it is solved by root if you are expert please give me

Answer 1

Let the rate percent per annum be R.

Given that sum of money will triple itself in 2 years.

= > A = P(1 + R/100)^n

= > 3P = P(1 + R/100)^2

= > (1 + R/100)^2 = 3

= > (1 + R/100) = $\sqrt{3}$

= > (1 + R/100) = 1.732

= > R/100 = 1.732 - 1

= > R/100 = 0.732

= > R = 73.2.

Therefore, the required rate is 73.2% per annum.

Hope this helps!