Q1) A student should answer ten questions on exam which contains 25 questions.  How many ways can a student do this?

Q2) Student should answer eight questions on exam which contains 15 questions.  How many ways are there if student has to answer first and last questions?

Q3) Ten horses are racing in Hot Springs Derby.  How many methods can horses come in  first, second, and third place?

Q4) You are at Corner Diner and they have a special. There is a choice of 8 entrees, 12 veggies, salads, 15 desserts and 9 drinks.  You can select one from each category.  How many different meals could you probably have.

Q5) If license plate has 4 letters followed by three numbers, how many license plates can you have  if there are no repetitions in number part and a one or zero can't be use in first digit of the number part.  It is ok if letters repeat. 

Q6) If probability of drawing a face card is 0.625. Determine the probability of not drawing a face card.

Q7) In family of 11 children, determine the probability of having at least one boy.