Last visit was: 22 Dec 2024, 19:06 It is currently 22 Dec 2024, 19:06

Close

GRE Prep 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 GRE 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
Verbal Expert
Joined: 18 Apr 2015
Posts: 30475
Own Kudos [?]: 36821 [13]
Given Kudos: 26100
Send PM
avatar
Intern
Intern
Joined: 27 Jul 2022
Posts: 6
Own Kudos [?]: 0 [0]
Given Kudos: 0
Send PM
Verbal Expert
Joined: 18 Apr 2015
Posts: 30475
Own Kudos [?]: 36821 [0]
Given Kudos: 26100
Send PM
avatar
Intern
Intern
Joined: 29 Jul 2018
Posts: 1
Own Kudos [?]: 1 [1]
Given Kudos: 0
Send PM
Re: John wants to place marbles in carry bags in such a way that some of t [#permalink]
1
Always remember to put n different things into a r different groups We use the formula R^n
Intern
Intern
Joined: 01 Oct 2023
Posts: 1
Own Kudos [?]: 0 [0]
Given Kudos: 0
Send PM
Re: John wants to place marbles in carry bags in such a way that some of t [#permalink]
Carcass wrote:
OE


John wants to place marbles in carry bags and it is given that the bags can be empty too
(Hence, all the marbles can go to 1 bag also.)
It is given that there are 5 different marbles and 2 different bags.
Whatever is to be assigned, let’s make dashes for that.
M1 M2 M3 M4 M5
Number of ways to fill each dash = 2
Number of ways to fill 1st and 2nd and 3rd and 4th and 5th dash
= 2 × 2 × 2 × 2 × 2 = 32
Quantity A = 32
Quantity B = 25
Since, Quantity A is greater than Quantity B.
Ans. (A)


The phrasing is unclear; if I have M1 M2 in B1, and M3 M4 M5 in B2, is that not equivalent to having M1 M2 in B2, and M3 M4 M5 in B1? Shouldn't the result be 32/2 = 16 ?
Intern
Intern
Joined: 15 Sep 2024
Posts: 14
Own Kudos [?]: 3 [1]
Given Kudos: 15
Send PM
Re: John wants to place marbles in carry bags in such a way that some of t [#permalink]
1
Hi Carcass,

Shouldn't it be 6 ways?

0,5
5,0
1,4
4,1
2,3
3,2

Posted from my mobile device
Verbal Expert
Joined: 18 Apr 2015
Posts: 30475
Own Kudos [?]: 36821 [0]
Given Kudos: 26100
Send PM
Re: John wants to place marbles in carry bags in such a way that some of t [#permalink]
Expert Reply
Yes you are correc

The question is worded properly in my view

We have to consider that one bag can be completely filled up and the other would be empty or a mix of both

1st arrangement is 5 (all in one) and 0 (the other empty.

Then the unfolding is what you pointed out above

4:2
3:2
2:3
1:4
0:5

Because we do have OR one way OR the other the result should be 64 for QA
Intern
Intern
Joined: 19 Oct 2024
Posts: 28
Own Kudos [?]: 14 [0]
Given Kudos: 70
Send PM
Re: John wants to place marbles in carry bags in such a way that some of t [#permalink]
Carcass wrote:
OE


John wants to place marbles in carry bags and it is given that the bags can be empty too (Hence, all the marbles can go to 1 bag also.)

It is given that there are 5 different marbles and 2 different bags.

Whatever is to be assigned, let’s make dashes for that.

\(M_1, M_2, M_3, M_4, M_5.\)

Number of ways to fill each dash = 2

Number of ways to fill 1st and 2nd and 3rd and 4th and 5th dash \(= 2 × 2 × 2 × 2 × 2 = 32\)

Quantity A = 32

Quantity B = 25

Since, Quantity A is greater than Quantity B.

Ans. (A)


wouldn't this be 32 + the cased where both bags are empty and one of the bags is empty? how would you compute it
Prep Club for GRE Bot
Re: John wants to place marbles in carry bags in such a way that some of t [#permalink]
Moderators:
GRE Instructor
88 posts
GRE Forum Moderator
37 posts
Moderator
1115 posts
GRE Instructor
234 posts

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