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

 It is currently 22 Jun 2018, 21:42

### 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 June
Open Detailed Calendar

### Show Tags

07 Dec 2012, 05:31
2
10
00:00

Difficulty:

5% (low)

Question Stats:

80% (00:59) correct 20% (01:02) wrong based on 1356 sessions

### HideShow timer Statistics

A store reported total sales of $385 million for February of this year. If the total sales for the same month last year was$320 million, approximately what was the percent increase in sales?

(A) 2%
(B) 17%
(C) 20%
(D) 65%
(E) 83%
Math Expert
Joined: 02 Sep 2009
Posts: 46284
Re: A store reported total sales of $385 million for February of [#permalink] ### Show Tags 07 Dec 2012, 05:35 Walkabout wrote: A store reported total sales of$385 million for February of this year. If the total sales for the same month last year was $320 million, approximately what was the percent increase in sales? (A) 2% (B) 17% (C) 20% (D) 65% (E) 83% Last year's sales =$320 million;
This year's sales = $385 million; Increase =$65 million.

Now, 20% of $320 million is$64 million, which is very close to actual increase of $65 million. Answer: C. OR: General formula for percent increase or decrease, or percent change: $$Percent=\frac{Change}{Original}*100$$ --> $$Percent=\frac{65}{320}*100=\frac{13}{64}*100\approx{\frac{13}{65}}*100=20%$$. Answer: C. _________________ Intern Joined: 06 Jun 2012 Posts: 18 Re: A store reported total sales of$385 million for February of [#permalink]

### Show Tags

15 Dec 2012, 02:45
This might sound stupid, but how do we know that we need to round up 64 to 65 without losing to much time. I did this question before and it took over 2 min before i knew that i had to round 64 to 65 in order to solve the problem. Do you have any trick in mind?
Math Expert
Joined: 02 Sep 2009
Posts: 46284

### Show Tags

11 Sep 2014, 07:09
A store reported total sales of $385 million for February of this year. If the total sales for the same month last year was$320 million, approximately what was the percent increase in sales?

(A) 2%
(B) 17%
(C) 20%
(D) 65%
(E) 83%

last year= 320
this year = 385

((385-320)/320)*100 = (65/320 )*100 approx.. 20
SVP
Status: The Best Or Nothing
Joined: 27 Dec 2012
Posts: 1837
Location: India
Concentration: General Management, Technology
WE: Information Technology (Computer Software)

### Show Tags

21 Oct 2015, 03:28
1
A store reported total sales of $385 million for February of this year. If the total sales for the same month last year was$320 million, approximately what was the percent increase in sales?

(A) 2%
(B) 17%
(C) 20%
(D) 65%
(E) 83%

Percentage increase = $$\frac{(Final - Original)}{Original}*100$$

Substituting the values here

$$\frac{(385 - 320)}{320}$$* 100 = (65/320)*100 = 20% approx
Option C
Target Test Prep Representative
Affiliations: Target Test Prep
Joined: 04 Mar 2011
Posts: 2570

### Show Tags

22 Sep 2017, 12:19
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.
_________________