Question

how many years will it take for a debt to double at 42 p.a. compound interest​

Answer 1

Answer:

Almost 5 years

Step-by-step explanation:

X*(1.15)^t = 2X. (1.15)^t = 2x/x = 2. log (1.15)^t = log(2). t * log(1.15) = log(2). t = log(2)/log(1.15) = 4.9595.