An amount ₹10,000 is invested in an account that compounds continuously

MATHEMATICS · Single correct · A Level · Mathematics · Exponentials and logarithms · Exponentials and logarithms

Problem

An amount ₹10,000 is invested in an account that compounds continuously. If it triples in 15 years, find the annual interest rate

r

(in percent, correct to two decimal places). (a) 4.62 % (b) 7.32 % (c) 7.60 % (d) 3.18 %