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

 It is currently 23 Feb 2019, 15:09

### 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

## Events & Promotions

###### Events & Promotions in February
PrevNext
SuMoTuWeThFrSa
272829303112
3456789
10111213141516
17181920212223
242526272812
Open Detailed Calendar
• ### FREE Quant Workshop by e-GMAT!

February 24, 2019

February 24, 2019

07:00 AM PST

09:00 AM PST

Get personalized insights on how to achieve your Target Quant Score.
• ### Free GMAT RC Webinar

February 23, 2019

February 23, 2019

07:00 AM PST

09:00 AM PST

Learn reading strategies that can help even non-voracious reader to master GMAT RC. Saturday, February 23rd at 7 AM PT

# If Company X’s and Company Y’s annual sales in 2011 were each 15 perce

Author Message
TAGS:

### Hide Tags

Math Expert
Joined: 02 Sep 2009
Posts: 53066
If Company X’s and Company Y’s annual sales in 2011 were each 15 perce  [#permalink]

### Show Tags

11 Oct 2018, 03:15
00:00

Difficulty:

35% (medium)

Question Stats:

72% (01:24) correct 28% (01:00) wrong based on 47 sessions

### HideShow timer Statistics

If Company X’s and Company Y’s annual sales in 2011 were each 15 percent higher than their respective annual sales in 2010, what was Company X’s annual sales in 2010?

(1) The sum of Company X’s and Company Y’s annual sales in 2010 was $60,000. (2) The sum of Company X’s and Company Y’s annual sales in 2011 was$69,000.

_________________
Director
Joined: 19 Oct 2013
Posts: 508
Location: Kuwait
GPA: 3.2
WE: Engineering (Real Estate)
Re: If Company X’s and Company Y’s annual sales in 2011 were each 15 perce  [#permalink]

### Show Tags

11 Oct 2018, 03:51
Bunuel wrote:
If Company X’s and Company Y’s annual sales in 2011 were each 15 percent higher than their respective annual sales in 2010, what was Company X’s annual sales in 2010?

(1) The sum of Company X’s and Company Y’s annual sales in 2010 was $60,000. (2) The sum of Company X’s and Company Y’s annual sales in 2011 was$69,000.

Let $$X_2 and Y_2$$ be the sales for the companies in 2011 and Let $$X_1 and Y_1$$ be the sales for the companies in 2010.

We know $$X_2 + Y_2$$ = $$(X_1 + Y_1)*1.15$$

For statement 1) we know the sum of $$X_1 and Y_1$$ but that only tells us the sum of $$X_2 + Y_2$$ and nothing specific on the sales of any of the two companies.

Insufficient.

For statement 2) we know the sum of $$X_2 and Y_2$$ but that only tells us the sum of $$X_1 and Y_1$$ and nothing specific on the sales of any of the two companies.

Insufficient.

Even when combined we don't get any further insight. we know the increase is 9,000 but what is sales of company x or company y?

E
Re: If Company X’s and Company Y’s annual sales in 2011 were each 15 perce   [#permalink] 11 Oct 2018, 03:51
Display posts from previous: Sort by