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

It is currently 21 Nov 2019, 03:57

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

Each of the 256 solid-colored marbles in a box is either blue, green,

  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: 59229
Each of the 256 solid-colored marbles in a box is either blue, green,  [#permalink]

Show Tags

New post 24 Jun 2018, 20:44
1
8
00:00
A
B
C
D
E

Difficulty:

  5% (low)

Question Stats:

87% (01:09) correct 13% (01:07) wrong based on 848 sessions

HideShow timer Statistics

Each of the 256 solid-colored marbles in a box is either blue, green, or purple. What is the ratio of the number of blue marbles to the number of purple marbles in the box?

(1) The number of green marbles in the box is 4 times the number of blue marbles in the box.
(2) There are 192 green marbles in the box.




NEW question from GMAT® Official Guide 2019


(DS07822)

_________________
Intern
Intern
User avatar
B
Status: GMAT APPLICANT
Joined: 29 Apr 2018
Posts: 14
Location: India
GMAT 1: 590 Q47 V25
GPA: 3.69
WE: Corporate Finance (Retail Banking)
Re: Each of the 256 solid-colored marbles in a box is either blue, green,  [#permalink]

Show Tags

New post 24 Jun 2018, 21:42
2
Bunuel wrote:
Each of the 256 solid-colored marbles in a box is either blue, green, or purple. What is the ratio of the number of blue marbles to the number of purple marbles in the box?

(1) The number of green marbles in the box is 4 times the number of blue marbles in the box.
(2) There are 192 green marbles in the box.




NEW question from GMAT® Official Guide 2019


(DS07822)


B+G+P = 256
to find B/P = ??

Stat 1 : G/B=4/1
Insufficient

Stat 2: G=192 ,
therefore B+P = 256-192 = 64,

Combining Stat 1 & 2 ,

we get b= 192/4 = 48 ,
and therefore P = 64-48 = 16

B/P = 48/16 = 3:1

Answer Choice C .
_________________
Hit Kudos if you like.

Open to Discussion
e-GMAT Representative
User avatar
V
Joined: 04 Jan 2015
Posts: 3142
Re: Each of the 256 solid-colored marbles in a box is either blue, green,  [#permalink]

Show Tags

New post 25 Jun 2018, 03:22
1

Solution



Given:
    • Each of the 256 solid-colored marbles in a box is either blue, green, or purple

To find:
    • The ratio of the number of blue marbles to the number of purple marbles in the box

Analysing Statement 1
    • As per the information given in statement 1, the number of green marbles in the box is 4 time the number of blue marbles in the box
      o Hence, if blue marbles are x, then green marbles will be 4x
      o We do not have any information about the number of marbles of any color

Hence, statement 1 is not sufficient to answer

Analysing Statement 2
    • As per the information given in statement 2, there are 192 green marbles in the box
      o From this statement, we can say the total number of purple and blue marbles is \((256 – 192) = 64\)
      o But we can’t find out the individual number of purple and blue marbles

Hence, statement 2 is not sufficient to answer

Combining Both Statements
If we combine both the statements, we can say:
    • Number of green marbles is 192
    • Green marbles are 4 times the number of blue marbles
      o Hence, number of blue marbles = \(\frac{192}{4} = 48\)
      o Therefore, number of purple marbles = \(64 – 48 = 16\)
    • As we know the number of marbles of each color, we can find out the required ratio

Hence, the correct answer is option C.

Answer: C
_________________
Non-Human User
User avatar
Joined: 09 Sep 2013
Posts: 13624
Re: Each of the 256 solid-colored marbles in a box is either blue, green,  [#permalink]

Show Tags

New post 26 Jul 2019, 08:50
Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
_________________
GMAT Club Bot
Re: Each of the 256 solid-colored marbles in a box is either blue, green,   [#permalink] 26 Jul 2019, 08:50
Display posts from previous: Sort by

Each of the 256 solid-colored marbles in a box is either blue, green,

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





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