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

It is currently 21 Oct 2019, 04:16

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

Fred has three dimes, two nickels, and four quarters in his pocket. If

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

Hide Tags

Find Similar Topics 
Math Expert
User avatar
V
Joined: 02 Sep 2009
Posts: 58421
Fred has three dimes, two nickels, and four quarters in his pocket. If  [#permalink]

Show Tags

New post 27 Feb 2019, 04:41
00:00
A
B
C
D
E

Difficulty:

  15% (low)

Question Stats:

86% (01:06) correct 14% (01:31) wrong based on 37 sessions

HideShow timer Statistics

Manager
Manager
avatar
B
Joined: 31 Dec 2018
Posts: 114
Location: India
GMAT ToolKit User Premium Member
Re: Fred has three dimes, two nickels, and four quarters in his pocket. If  [#permalink]

Show Tags

New post 27 Feb 2019, 04:53
P= 3C2/9C2=3/36=1/12

Posted from my mobile device
Senior PS Moderator
User avatar
V
Joined: 26 Feb 2016
Posts: 3335
Location: India
GPA: 3.12
Re: Fred has three dimes, two nickels, and four quarters in his pocket. If  [#permalink]

Show Tags

New post 27 Feb 2019, 05:01
Bunuel wrote:
Fred has three dimes, two nickels, and four quarters in his pocket. If he selects two coins, at random and without replacement, what is the probability that he selects two dimes?


A. 1/12

B. 1/6

C. 1/4

D. 1/3

E. 1/2



The probabaility that the first coin picked is a dime is \(\frac{3}{9} = \frac{1}{3}\)

The probabaility that the second coin picked is also a dime is \(\frac{2}{8} = \frac{1}{4}\)

Therefore, the probability that Fred picks two dimes is \(\frac{1}{3}*\frac{1}{4} = \frac{1}{12}\)(Option A)
_________________
You've got what it takes, but it will take everything you've got
GMAT Club Legend
GMAT Club Legend
User avatar
D
Joined: 18 Aug 2017
Posts: 5026
Location: India
Concentration: Sustainability, Marketing
GPA: 4
WE: Marketing (Energy and Utilities)
GMAT ToolKit User Premium Member
Re: Fred has three dimes, two nickels, and four quarters in his pocket. If  [#permalink]

Show Tags

New post 27 Feb 2019, 05:45
Bunuel wrote:
Fred has three dimes, two nickels, and four quarters in his pocket. If he selects two coins, at random and without replacement, what is the probability that he selects two dimes?


A. 1/12

B. 1/6

C. 1/4

D. 1/3

E. 1/2


total coinns = 9
so getting 2 dimes;
3/9 * 2/8 ; 1/12
IMO A
Manager
Manager
avatar
S
Joined: 17 May 2018
Posts: 140
Location: India
Re: Fred has three dimes, two nickels, and four quarters in his pocket. If  [#permalink]

Show Tags

New post 27 Feb 2019, 06:32
1
The probability of picking two dimes = 3c2
Probability of picking any 2 coins= 9c2
Hence the ans= 3c2/9c2 = 1/12

Posted from my mobile device
GMAT Club Bot
Re: Fred has three dimes, two nickels, and four quarters in his pocket. If   [#permalink] 27 Feb 2019, 06:32
Display posts from previous: Sort by

Fred has three dimes, two nickels, and four quarters in his pocket. If

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





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