Question

N
In what time will Rs.5120 amount to Rs.7290 at 12.5% per annum,
compounded annually?​

Answer 1

Answer:

3 years

Step-by-step explanation:

Given:- Principal= ₹5120, Rate per annum=12.5%, Time=N , Amount=₹7290

A = P[1+1/100]N

₹7290 = ₹5120[1+12.5/100]n

7290÷5120 = [1+125/10×100]n

729÷512 = [1+1/8]n

(9/8)3 = [8+1/8]n

(9/8)3= [9/8]n

3 = n

n = time

time = 3 years

Answer 2

Answer:

formulae to make this sum is :--

Step-by-step explanation:

P(1+r/100)n^