Question to be solved:

At what annual interest rate must Rs. 1,34,00,000 be invested by Sarah today so that it will grow to Rs. 4,59,00,000 in 15 years if interest is compounded weekly?


Helping material

S = P(1 + r/100)^ n
Compound interest = S - P



Where,
S = Money accrued after n years also called compound amount
P = Principal
r = Rate of interest
n = Number of periods