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

 It is currently 20 Oct 2018, 05:52

### 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

# M16-21

Author Message
TAGS:

### Hide Tags

Math Expert
Joined: 02 Sep 2009
Posts: 50004

### Show Tags

16 Sep 2014, 00:59
00:00

Difficulty:

15% (low)

Question Stats:

76% (00:30) correct 24% (00:29) wrong based on 62 sessions

### HideShow timer Statistics

If in a $180 mln portfolio of stock, twice as much is invested in stock A as is invested in all the other stocks, how much is invested in all the other stocks? A.$60 mln
B. $80 mln C.$100 mln
D. $120 mln E.$150 mln

_________________
Math Expert
Joined: 02 Sep 2009
Posts: 50004

### Show Tags

16 Sep 2014, 00:59
Official Solution:

If in a $180 mln portfolio of stock, twice as much is invested in stock A as is invested in all the other stocks, how much is invested in all the other stocks? A.$60 mln
B. $80 mln C.$100 mln
D. $120 mln E.$150 mln

Let $$x$$ denote the amount invested in all the other stocks. Then the amount invested in stock A is $$2x$$. As we have the \$180 mln portfolio, $$x + 2x = 3x = 180$$ mln from where $$x = 60$$ mln.

_________________
Manager
Joined: 24 Nov 2013
Posts: 59

### Show Tags

14 Aug 2015, 21:22
we can also solve by plugging number.
since other stocks is 80 million, investment in A will be 80*2 = 160...
160 (A) + 80 (other) > 180....hence we need a lower 'other investment'.

Hence option A is correct
Retired Moderator
Joined: 26 Nov 2012
Posts: 593

### Show Tags

02 Sep 2017, 13:32
Hi Bunuel,

When it is mentioned that twice A as much as B then it has to be A = 2B. If we consider x as the investment then it has be x+2x = 180. Other stocks value should be 120. Can you let me the relation.
Senior SC Moderator
Joined: 14 Nov 2016
Posts: 1314
Location: Malaysia

### Show Tags

03 Sep 2017, 01:36
msk0657 wrote:
Hi Bunuel,

When it is mentioned that twice A as much as B then it has to be A = 2B. If we consider x as the investment then it has be x+2x = 180. Other stocks value should be 120. Can you let me the relation.

Hi msk0657,

Twice as much as A = other stocks

Let B = other stocks
2A = B

Total = 3 portion

180 / 3 = 60 = B = other stocks
_________________

"Be challenged at EVERY MOMENT."

“Strength doesn’t come from what you can do. It comes from overcoming the things you once thought you couldn’t.”

"Each stage of the journey is crucial to attaining new heights of knowledge."

Intern
Joined: 06 Jun 2018
Posts: 37
GMAT 1: 590 Q44 V27
GMAT 2: 540 Q42 V22

### Show Tags

22 Sep 2018, 06:24
Bunuel chetan2u - I understand this is a straight forward question however I am not convinced with question language or answer justification. What question says " twice as much is invested in stock A as is invested in all the other stocks " - And I know it is discussed above as well but I request you to revisit the sentence again - it says Stock A = a , other stocks is twice as much is invested in stock A so it is 2a. So ideally answer should be 120.
Math Expert
Joined: 02 Sep 2009
Posts: 50004

### Show Tags

23 Sep 2018, 03:28
1
NAvinash wrote:
Bunuel chetan2u - I understand this is a straight forward question however I am not convinced with question language or answer justification. What question says " twice as much is invested in stock A as is invested in all the other stocks " - And I know it is discussed above as well but I request you to revisit the sentence again - it says Stock A = a , other stocks is twice as much is invested in stock A so it is 2a. So ideally answer should be 120.

Twice as much is invested in stock A as is invested in all the other stocks, mean A = 2x and all others = x: twice as much is invested in stock A (2x) as is invested in all the other stocks (x).
_________________
Re: M16-21 &nbs [#permalink] 23 Sep 2018, 03:28
Display posts from previous: Sort by

# M16-21

Moderators: chetan2u, Bunuel

 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®.