perplexus.info :: Probability : Picking cards

Picking cards (Posted on 2006-08-17)

A player picks random cards from an ordinary card deck, without returning them to the deck. How many cards should he pick so as to get at least one ace with 70% probability?

No Solution Yet Submitted by atheron

Rating: 3.0000 (1 votes)

Comments: ( You must be logged in to post comments.)

Subject	Author	Date
Puzzle Solution Verification	K Sengupta	2022-04-07 23:25:54
answer	saurabh	2006-08-30 16:50:46
re: Solution	Charlie	2006-08-19 16:29:35
Solution	Luna	2006-08-18 17:01:00
re(3): solution -- spoiler	Penny	2006-08-17 21:15:28
re(2): solution -- spoiler	Charlie	2006-08-17 20:08:42
re: solution -- spoiler	Penny	2006-08-17 17:42:02
solution -- spoiler	Charlie	2006-08-17 11:40:25

Please log in:

Login:
Password:
Remember me:

Sign up! \| Forgot password

Search:

Search body:

Forums (0)
Newest Problems
Random Problem
FAQ | About This Site
Site Statistics
New Comments (2)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Chatterbox:

<a href="http://c.casalemedia.com/c?s=51816&f=2&id=70168749.17279696" target="_blank"><img src="http://as.casalemedia.com/s?s=51816&u=http%3A//perplexus.info/show.php%3Fpid%3D4944&f=2&id=70168749.17279696&if=0" width="728" height="90" border="0"></a>
perplexus dot info