# math

posted by
**sally**
.

If rhys is late for his finite mathematics class, and the probability that he is on time is 3/4. however if he is on time, he is liable to be less concerned about punctuality for the next class and his probability being on time drops to 1/2. rhy is on time monday. find the probability that:

a) he is on time wednesday

b) he is late on thursday

Thank you!