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jayhawk2001: Community Manager; Posts: 789; Joined: Sun Jan 28, 2007 3:51 pm; Location: Silicon valley, California; Thanked: 30 times; Followed by:1 members

by jayhawk2001 » Mon Apr 16, 2007 7:59 pm

We can form an equation of the form below using the info in the question

3/10 + x * (7/10) = 1/2

Solving, we get x = 2/7

I think the trick here is "what percent of the leftover votes" not
"what percent of the total votes"

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Cybermusings: Legendary Member; Posts: 559; Joined: Tue Mar 27, 2007 1:29 am; Thanked: 5 times; Followed by:2 members

by Cybermusings » Tue Apr 17, 2007 2:31 am

If total votes cast were x. Beth received 3x/10
Remainder votes cast = 7x/10
In order to receive ½ of the votes cast Beth needs total 5x/10 votes cast or 2x/10 additional votes
Thus she needs (2x/10)/(7x/10) more votes = 2/7

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