1. With a short time remaining in the day, a KFC delivery driver has time to make deliveries at five locations( including KB's house) among the 10 locations remaining. How many different routes are possible?

2.Referring to the list of eight outcomes that are possible when a couple has three children. Find the probability of each event.

(i) There are exactly two boys

(ii) At least two boys

(iii) All are boys

(iv) There is exactly four boys

(v) At least five boys