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

It is currently 20 Jan 2019, 16:02

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
Events & Promotions in January
PrevNext
SuMoTuWeThFrSa
303112345
6789101112
13141516171819
20212223242526
272829303112
Open Detailed Calendar

The partially completed probability tree diagram shows the chances of

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

Hide Tags

 
Math Expert
User avatar
V
Joined: 02 Sep 2009
Posts: 52296
The partially completed probability tree diagram shows the chances of  [#permalink]

Show Tags

New post 22 Mar 2018, 23:02
00:00
A
B
C
D
E

Difficulty:

  15% (low)

Question Stats:

82% (00:58) correct 18% (00:52) wrong based on 53 sessions

HideShow timer Statistics

The partially completed probability tree diagram shows the chances of an outdoor concert taking place or being canceled when rain might or might not occur. What is the probability that the concert takes place given that it rains?

Image


(A) 2%
(B) 15%
(C) 25%
(D) 38%
(E) 85%


Attachment:
2018-03-23_1101.png
2018-03-23_1101.png [ 40.38 KiB | Viewed 592 times ]

_________________

New to the Math Forum?
Please read this: Ultimate GMAT Quantitative Megathread | All You Need for Quant | PLEASE READ AND FOLLOW: 12 Rules for Posting!!!

Resources:
GMAT Math Book | Triangles | Polygons | Coordinate Geometry | Factorials | Circles | Number Theory | Remainders; 8. Overlapping Sets | PDF of Math Book; 10. Remainders | GMAT Prep Software Analysis | SEVEN SAMURAI OF 2012 (BEST DISCUSSIONS) | Tricky questions from previous years.

Collection of Questions:
PS: 1. Tough and Tricky questions; 2. Hard questions; 3. Hard questions part 2; 4. Standard deviation; 5. Tough Problem Solving Questions With Solutions; 6. Probability and Combinations Questions With Solutions; 7 Tough and tricky exponents and roots questions; 8 12 Easy Pieces (or not?); 9 Bakers' Dozen; 10 Algebra set. ,11 Mixed Questions, 12 Fresh Meat

DS: 1. DS tough questions; 2. DS tough questions part 2; 3. DS tough questions part 3; 4. DS Standard deviation; 5. Inequalities; 6. 700+ GMAT Data Sufficiency Questions With Explanations; 7 Tough and tricky exponents and roots questions; 8 The Discreet Charm of the DS; 9 Devil's Dozen!!!; 10 Number Properties set., 11 New DS set.


What are GMAT Club Tests?
Extra-hard Quant Tests with Brilliant Analytics

examPAL Representative
User avatar
G
Joined: 07 Dec 2017
Posts: 868
Re: The partially completed probability tree diagram shows the chances of  [#permalink]

Show Tags

New post 22 Mar 2018, 23:08
Bunuel wrote:
The partially completed probability tree diagram shows the chances of an outdoor concert taking place or being canceled when rain might or might not occur. What is the probability that the concert takes place given that it rains?


(A) 2%
(B) 15%
(C) 25%
(D) 38%
(E) 85%




Since the calculation we're asked to do is straightforward, we'll just do it.
This is a Precise approach.

Since we know that it rains, we can ignore the bottom part of the diagram.
Looking inside the 'rain' part of the diagram, 75% of cancellation means 25% of no cancellation

(C) is our answer.
_________________

Image
Sign up for 7-day free trial
Image

Intern
Intern
avatar
B
Joined: 23 Oct 2013
Posts: 13
Re: The partially completed probability tree diagram shows the chances of  [#permalink]

Show Tags

New post 23 Mar 2018, 10:28
i will go with 15%

probability of rain * concert will take place
=.6*.25
=15%
Manager
Manager
avatar
G
Joined: 01 Feb 2017
Posts: 175
Re: The partially completed probability tree diagram shows the chances of  [#permalink]

Show Tags

New post 23 Mar 2018, 23:02
P(rain) x P(concert)=
0.6 x 0.25= 0.15

Hence, 15%
Ans B

Posted from my mobile device
Intern
Intern
avatar
B
Joined: 20 Dec 2014
Posts: 37
GMAT ToolKit User
Re: The partially completed probability tree diagram shows the chances of  [#permalink]

Show Tags

New post 23 Mar 2018, 23:42
sameeruce08 wrote:
i will go with 15%

probability of rain * concert will take place
=.6*.25
=15%


The word given is problematic. If the wordings May hve added a uncertainty that it May rain then answer would have been 15%
Have selected 15 but not sure could be 25 also
_________________

Kindly press "+1 Kudos" to appreciate :)

GMAT Club Bot
Re: The partially completed probability tree diagram shows the chances of &nbs [#permalink] 23 Mar 2018, 23:42
Display posts from previous: Sort by

The partially completed probability tree diagram shows the chances of

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


Copyright

GMAT Club MBA Forum Home| About| Terms and Conditions and Privacy Policy| GMAT Club Rules| Contact| Sitemap

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

Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.