A worker is paid Tk. d an hour for the first 8 hours she works in a day. For every hour after the first 8 hours, she is paid Tk. c an hour. If she works 12 hours in one day, what is her average hourly wage for that day?
A
(4d+80)/12
B
8d+4c
C
(8d+12c)/12
D
(2d+c)/3
Correct Answer: (2d+c)/3