bonanova Posted October 11, 2008 Report Share Posted October 11, 2008 (edited) The marbles in John's collection were of 13 different colors; each marble was of a single color. His sisters, Jane and Joanne, especially liked the red ones, and asked if they might have one each. Feeling generous, but not wanting to give them everything they asked, John let them each take one marble from the black velvet bag where he kept his collection, but he did not let them look inside. It is an even money bet that both sisters got their wish and pulled out a red marble. How many red marbles might have been in John's collection before his sisters chose? Edit: Of the 13 possible colors, obviously some were red. There may have been zero of some of the other 12 colors. Edited October 12, 2008 by bonanova clarify the color distribution possibilitites Quote Link to comment Share on other sites More sharing options...
0 Guest Posted October 13, 2008 Report Share Posted October 13, 2008 I'm sure there's a good pun in here about 13-colored herrings or something along those lines, but I can't quite put my finger on it. Quote Link to comment Share on other sites More sharing options...
0 bonanova Posted October 13, 2008 Author Report Share Posted October 13, 2008 I'm sure there's a good pun in here about 13-colored herrings or something along those lines, but I can't quite put my finger on it. Thirteen non-red herrings? Quote Link to comment Share on other sites More sharing options...
0 Guest Posted October 13, 2008 Report Share Posted October 13, 2008 Thirteen non-red herrings? damn thats a good reply why didnt i think of that... Quote Link to comment Share on other sites More sharing options...
Question
bonanova
The marbles in John's collection were of 13 different colors; each marble was of a single color.
His sisters, Jane and Joanne, especially liked the red ones, and asked if they might have one each.
Feeling generous, but not wanting to give them everything they asked, John let them each take
one marble from the black velvet bag where he kept his collection, but he did not let them look inside.
It is an even money bet that both sisters got their wish and pulled out a red marble.
How many red marbles might have been in John's collection before his sisters chose?
Edit: Of the 13 possible colors, obviously some were red. There may have been zero of some of the other 12 colors.
Edited by bonanovaclarify the color distribution possibilitites
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