3- An activity with a learning rate of 0.85 takes 25 hours for the first iteration. How long will it take to complete this task for the 15th time?
a- 12.55 hours
b-12.85 hours
c- 13.15 hours
d-13.25 hours
a- 12.55 hours
b-12.85 hours
c- 13.15 hours
d-13.25 hours