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

 It is currently 07 Dec 2019, 02:12

### 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

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

# A bag of jellybeans has red and yellow jellybeans in a ratio of c : d.

Author Message
TAGS:

### Hide Tags

Math Expert
Joined: 02 Sep 2009
Posts: 59587
A bag of jellybeans has red and yellow jellybeans in a ratio of c : d.  [#permalink]

### Show Tags

20 Feb 2019, 00:34
00:00

Difficulty:

15% (low)

Question Stats:

93% (01:24) correct 7% (02:28) wrong based on 29 sessions

### HideShow timer Statistics

A bag of jellybeans has red and yellow jellybeans in a ratio of c : d. If there are r red jellybeans in the bag, which of the following represents the number of yellow jellybeans in the bag?

A. c/r
B. dr/c
C. cd/r
D. d(c + r)
E. d(r − d)

_________________
Senior Manager
Joined: 20 Mar 2018
Posts: 407
Location: Ghana
Concentration: Finance, Real Estate
A bag of jellybeans has red and yellow jellybeans in a ratio of c : d.  [#permalink]

### Show Tags

20 Feb 2019, 01:34
1
Question asked the value of yellow jelly beans in bag
Ratio of red (R) and yellow (Y) jellybeans =R/Y =>cx/dx , where x=multiplier/base set
But we have been given value of red jellybeans =r ,therefore cx=r —>x=r/c (thus the multiplier value )
So value of yellow jellybeans =dx
=> d(r/c) =dr/c
Ans is B

Posted from my mobile device
VP
Joined: 31 Oct 2013
Posts: 1489
Concentration: Accounting, Finance
GPA: 3.68
WE: Analyst (Accounting)
Re: A bag of jellybeans has red and yellow jellybeans in a ratio of c : d.  [#permalink]

### Show Tags

20 Feb 2019, 02:05
Bunuel wrote:
A bag of jellybeans has red and yellow jellybeans in a ratio of c : d. If there are r red jellybeans in the bag, which of the following represents the number of yellow jellybeans in the bag?

A. c/r
B. dr/c
C. cd/r
D. d(c + r)
E. d(r − d)

Let the total jellybeans = 30

Ratio of red jellybeans ( c)= 2

Ratio of the yellow jellybeans (d) = 3

Red jellybeans = 12 ( r)

Yellow jellybeans = 18.

Option A) c/r = 2/12 = 1/6..........NOT matched.

Option B) dr / c = 3*12 / 2 = 18.................Matched. we know yellow jellybeans must be 18.

GMAT Club Legend
Joined: 18 Aug 2017
Posts: 5430
Location: India
Concentration: Sustainability, Marketing
GPA: 4
WE: Marketing (Energy and Utilities)
Re: A bag of jellybeans has red and yellow jellybeans in a ratio of c : d.  [#permalink]

### Show Tags

20 Feb 2019, 02:22
Bunuel wrote:
A bag of jellybeans has red and yellow jellybeans in a ratio of c : d. If there are r red jellybeans in the bag, which of the following represents the number of yellow jellybeans in the bag?

A. c/r
B. dr/c
C. cd/r
D. d(c + r)
E. d(r − d)

given
red/yellow ; c:d

and red = r
r/yellow ; c:d
and yellow ; r * d/c
IMO B
Re: A bag of jellybeans has red and yellow jellybeans in a ratio of c : d.   [#permalink] 20 Feb 2019, 02:22
Display posts from previous: Sort by