It is currently 24 Jun 2017, 21:01

### GMAT Club Daily Prep

#### Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

# Events & Promotions

###### Events & Promotions in June
Open Detailed Calendar

# 25 balls in a box. colors: red, white or blue. each numbered

Author Message
Manager
Joined: 27 Sep 2006
Posts: 70
25 balls in a box. colors: red, white or blue. each numbered [#permalink]

### Show Tags

01 Feb 2007, 05:11
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

25 balls in a box. colors: red, white or blue. each numbered 1 to 10. if 1 is selected at random what is the probability the ball selected is either white
or has even number painted on it?
1. prob. of white and even = 0
2. prob. of white minus prob. even number = 0.2

Senior Manager
Joined: 24 Oct 2006
Posts: 339

### Show Tags

01 Feb 2007, 14:36
1
KUDOS
I think, we should know the p(even)+p(white)-p(even&white)

since both the statements do not provide the necessary info ans is E
01 Feb 2007, 14:36
Display posts from previous: Sort by