GMAT Question of the Day - Daily to your Mailbox; hard ones only

It is currently 13 Dec 2019, 13:30

Close

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
Your Progress

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

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

Close

Request Expert Reply

Confirm Cancel

A jar contains 30 marbles, of which 10 are red, 10 are blue,

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:

Hide Tags

Find Similar Topics 
BSchool Forum Moderator
avatar
V
Joined: 29 Jan 2015
Posts: 1468
Location: India
WE: General Management (Non-Profit and Government)
GMAT ToolKit User Premium Member Reviews Badge
A jar contains 30 marbles, of which 10 are red, 10 are blue,  [#permalink]

Show Tags

New post 23 Nov 2019, 06:31
3
00:00
A
B
C
D
E

Difficulty:

  35% (medium)

Question Stats:

69% (02:02) correct 31% (02:56) wrong based on 13 sessions

HideShow timer Statistics

A jar contains 30 marbles, of which 10 are red, 10 are blue, 5 are green and the rest are yellow. If 2 marbles are to be selected at random from the jar, one at a time without being replaced, what is the approximate probability that two marble selected will be with the same color?

(A) 1/15

(B) 1/5

(C) 1/3

(D) 1/4

(E) 1/2
Senior Manager
Senior Manager
User avatar
G
Joined: 29 Jun 2019
Posts: 470
Re: A jar contains 30 marbles, of which 10 are red, 10 are blue,  [#permalink]

Show Tags

New post 23 Nov 2019, 09:38
(10/30 × 9/29)×2 +(5/30 ×4/29)×2= 40/87
Which is approximatelly 1/4
Option D

Posted from my mobile device
_________________
Always waiting
GMAT Club Bot
Re: A jar contains 30 marbles, of which 10 are red, 10 are blue,   [#permalink] 23 Nov 2019, 09:38
Display posts from previous: Sort by

A jar contains 30 marbles, of which 10 are red, 10 are blue,

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  





Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne