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Change & odds

 
 
Reply Fri 21 May, 2010 03:18 pm
You're going to the dollar tree, and you scramble for some loose change. You manage to get a dollar's worth in change, with 50 coins. When you are walking into the store, you almost get hit by a car, and you drop one coin, which rolls into the gutter. What are the odds that you dropped a quarter?
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Type: Question • Score: 0 • Views: 1,787 • Replies: 3
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OCCOM BILL
 
  1  
Reply Fri 21 May, 2010 07:24 pm
@whimsical,
I'm going to go with a 1 in 100 chance.

Because you can't have more than 1 quarter and still hit 50 coins on the head. You can have 1 quarter (along with 2 dimes, 2 nickels and 45 pennies) which would leave you a 1 in 50 chanceā€¦ or you could have no quarters (with 2 dimes, 8 nickels and 40 pennies) which cuts your odds in half.

(Answer Ribbon Please!)
engineer
 
  2  
Reply Fri 21 May, 2010 09:19 pm
@OCCOM BILL,
Nice answer.
OCCOM BILL
 
  1  
Reply Mon 24 May, 2010 06:24 pm
@engineer,
Thanks... but it looks like I'm getting jipped out of the coveted ribbon. Sad
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