Thread: Probability Fun
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Old 06-10-2010, 02:32 AM   #14
pdurrant
The Grand Mouse 高貴的老鼠
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Quote:
Originally Posted by omk3 View Post
Hmmm

We know at least one boy was born on Tuesday.
So we have the options:

Girl (any day) - Boy (Tuesday)
Boy (Tuesday) - Girl (any day)
Boy (Tuesday) - Boy (any day)
Boy (any day) - Boy (Tuesday)
Boy (Tuesday) - Boy (Tuesday)

I think the last probability is 3/5, or 0,6.
On the right lines, but not right yet.
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