Need Within 30min

12 black balls and 6 white balls are placed in an urn. Two balls are then drawn in succession. What is the probability that the second ball drawn is a white ball if the second ball is drawn without replacing the first ball?

a) 0.0980

b) 0.3333

c) 0.2353

d) 0.3148

e) 0.2157

f) None of the above.