When I saw a problem on the site, it had a 2.6 rating. Since I really liked the problem, I voted 5 for it, and saw that the rating went from 2.6 to 2.75.

1) How many people voted for it before I did?

2)What would the rating of this problem be if two more people voted 5 for this problem?

1) before you voted, 15 people had voted.
2) if two more people voted 5 after you, the rating would be a 3.

to solve set up and solve these equations simultaneously:

x/y = 2.6 & (x+5)/(y+1) = 2.75

with x being the total of points voted and y being the number of people who have voted. Manipulate the equations to satisfy question 2 and your done.

Posted by DuCk on 2003-07-25 02:12:35