Question

in what time will rupees 5920 amount to rupees 7298 at 12.5 percent per annum compounded annually​

Answer 1

Answer:

it takes aound 1 year 10 months to 2 years for compounding 5920 to 7298 annualy at 12.5 percent.  

Answer 2

Answer:

Let time = n years

P = Rs.6250

A = Rs.7290

R = 8% per annum

Now,

Amount (A) = P (1 + R/100)n [Where, A = Amount with compound interest

P = Present value

R = Annual interest rate

n = Time in years]

∴ A = P (1 + R/100)n

⇒ 7290 = 6250 (1 + 8/100)n

⇒ (1 + 2/25)n = 7290/6250

⇒ (27/25)n = 729/625

⇒ (27/25)n = (27/25)2

⇒ n = 2

∴ Time = 2 years.