how many ways can n horses finish a race assuming ties are possible?Captain Gh3y said:Can you guys post an example of what you think would be a really difficult P&C question? Just since so many of you thought it was the hardest
wtf ?Yip said:You could only ask that question once the binomial topic has been covered. Here is another hard P&C question, though slightly out of scope of the syllabus:
There are n steps, and a child can crawl up these steps either one step at a time or two steps at a time. How many ways are there for the child to crawl up these n steps?