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

It is currently 16 Sep 2019, 21:32

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

Mary and Joe are to throw three dice each. The score is the

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

Hide Tags

Find Similar Topics 
Intern
Intern
avatar
B
Joined: 10 Dec 2017
Posts: 28
Location: India
Re: Mary and Joe are to throw three dice each. The score is the  [#permalink]

Show Tags

New post 22 Aug 2019, 22:13
noboru wrote:
Mary and Joe are to throw three dice each. The score is the sum of points on all three dice. If Mary scores 10 in her attempt what is the probability that Joe will outscore Mary in his?

A. 24/64
B. 32/64
C. 36/64
D. 40/64
E. 42/64


To outscore Mary, joe has to score 11 or more.
first die-6
second die-4
third die- 1
if he gets 6 on the first die then he has no more options on first throw but in second die he may get 4 or 5 or 6 so total 3 outcomes
on the third die he has 6 options(1,2,3,4,5,6).
so total outcomes= 1*3*6=18
it can be done in !3 ways
so total outcome= !3*18
Desired outcome= !3*18/6*6*6
= 1/2
GMAT Club Bot
Re: Mary and Joe are to throw three dice each. The score is the   [#permalink] 22 Aug 2019, 22:13

Go to page   Previous    1   2   [ 21 posts ] 

Display posts from previous: Sort by

Mary and Joe are to throw three dice each. The score is the

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





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