perplexus.info :: Probability : Four balls

Four balls (Posted on 2017-05-19)

There are four balls in a hat: a blue one, a white one, and two red ones. Now I draw simultaneously two balls, look at them, and announce that at least one of them is red.

What is the chance that the other is red as well?

See The Solution Submitted by Ady TZIDON

Rating: 3.5000 (2 votes)

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

Subject	Author	Date
No Subject	Ady TZIDON	2017-08-03 11:32:14
The real solution	Math Man	2017-05-24 09:30:46
re(2): There is only one correct answer !....SPOILER	Ady TZIDON	2017-05-22 17:26:35
re: There is only one correct answer !....SPOILER	Brian Smith	2017-05-22 12:05:40
re: There is only one correct answer ! (Baye)	hoodat	2017-05-22 10:54:54
re(3): Who's right	Ady TZIDON	2017-05-22 03:06:48
There is only one correct answer !....SPOILER	Ady TZIDON	2017-05-22 03:02:19
re(5): Who's right	Brian Smith	2017-05-21 23:17:59
re(4): Who's right	Charlie	2017-05-21 22:13:24
re(3): Who's right	Brian Smith	2017-05-21 17:15:20
re(2): Who's right	Charlie	2017-05-21 16:37:54
re: Who's right	hoodat	2017-05-20 20:59:15
re(2): Who's right?.......I AM.	Ady TZIDON	2017-05-20 09:38:02
re: Who's right?	broll	2017-05-20 02:56:51
Who's right?	Ady TZIDON	2017-05-20 00:41:00
re(2): I agree with Brian	Daniel	2017-05-19 23:38:41
Solution	hoodat	2017-05-19 23:10:27
re: I agree with Brian	Charlie	2017-05-19 23:01:06
I agree with Brian	Steve Herman	2017-05-19 13:28:44
Solution	Brian Smith	2017-05-19 12:43:07
Solution	Jer	2017-05-19 11:56:13
Solution	Charlie	2017-05-19 11:00:34

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