All about flooble | fun stuff | Get a free chatterbox | Free JavaScript | Avatars    
perplexus dot info

Home > Probability
Blue majority (Posted on 2024-03-18) Difficulty: 2 of 5
Initially a box contained 6 blue pens, 8 black pens and 3 red pens.
You blindly picked up a pen.
(a) What is the probability that it was a blue pen?

Later some additional blue pens were put in the box.
The probability of selecting a blue pen became then 50%.

(b) How many blue pens were added to the box?

No Solution Yet Submitted by Ady TZIDON    
No Rating

Comments: ( You must be logged in to post comments.)
  Subject Author Date
Some ThoughtsPuzzle ThoughtsK Sengupta2024-03-18 10:37:24
Some Thoughtsdifferent interpretationsLarry2024-03-18 08:58:22
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 (7)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Chatterbox:
Copyright © 2002 - 2024 by Animus Pactum Consulting. All rights reserved. Privacy Information