During 2005, a company produced an average of 2000 products per month. How many products will the company need to produce from 2006 through 2008 in order to increase its monthly average for the period from 2005 through 2008 by 200% over its 2005 average?
1) 148000 2) 172000 3) 200000 4) 264000 5) 288000
Average Problem
This topic has expert replies
 GMATGuruNY
 GMAT Instructor
 Posts: 15533
 Joined: 25 May 2010
 Location: New York, NY
 Thanked: 13060 times
 Followed by:1898 members
 GMAT Score:790
Monthly average over all 4 years = 2000 + 2*2000 = 6000.raunekk wrote:During 2005, a company produced an average of 2000 products per month. How many products will the company need to produce from 2006 through 2008 in order to increase its monthly average for the period from 2005 through 2008 by 200% over its 2005 average?
1) 148000 2) 172000 3) 200000 4) 264000 5) 288000
Jan 2005 + Jan 2006 + Jan 2007 + Jan 2008 = 4*6000 = 24000.
Jan 2006 + Jan 2007 + Jan 2008 = 24000  Jan 2005 = 240002000 = 22000.
Thus, monthly average for 2006, 2007 and 2008 = 22000/3.
Over 36 months, total for 2006, 2007 and 2008 = 36*(22000/3) = 264,000.
The correct answer is D.
Mitch Hunt
Private Tutor for the GMAT and GRE
[email protected]
If you find one of my posts helpful, please take a moment to click on the "UPVOTE" icon.
Available for tutoring in NYC and longdistance.
For more information, please email me at [email protected].
Student Review #1
Student Review #2
Student Review #3
Private Tutor for the GMAT and GRE
[email protected]
If you find one of my posts helpful, please take a moment to click on the "UPVOTE" icon.
Available for tutoring in NYC and longdistance.
For more information, please email me at [email protected].
Student Review #1
Student Review #2
Student Review #3
 Mom4MBA
 Senior  Next Rank: 100 Posts
 Posts: 90
 Joined: 22 Jan 2010
 Location: New Jersey
 Thanked: 13 times
 Followed by:4 members
 GMAT Score:640
for 2005:
given average is 2000
so total will be 2000 x 12 = 24,000
for 2006 to 2008:
let total be y
for 2005 to 2008:
average will be (total of 2005 + total of 2006 to 2008)/48 = (24000+y)/ 48
in order to increase its monthly average for the period from 2005 through 2008 by 200% over its 2005 average:
[(avg 2005 to 2008)  (avg 2005)] / avg 2005 = 200/100
[((24000+ y)/48 )  2000]/ 2000 = 200/100
on solving we will get y = 264,000
given average is 2000
so total will be 2000 x 12 = 24,000
for 2006 to 2008:
let total be y
for 2005 to 2008:
average will be (total of 2005 + total of 2006 to 2008)/48 = (24000+y)/ 48
in order to increase its monthly average for the period from 2005 through 2008 by 200% over its 2005 average:
[(avg 2005 to 2008)  (avg 2005)] / avg 2005 = 200/100
[((24000+ y)/48 )  2000]/ 2000 = 200/100
on solving we will get y = 264,000
Stay focused

 Senior  Next Rank: 100 Posts
 Posts: 37
 Joined: 16 Jun 2012
GMAT/MBA Expert
 [email protected]
 GMAT Instructor
 Posts: 1460
 Joined: 09 Apr 2015
 Location: New York, NY
 Thanked: 39 times
 Followed by:20 members
We need to determine how many products a company will need to produce in order to increase its monthly average of 2,000 products by 200% for the period from 2005 through 2008. Thus, the average has to increase to 3 x 2,000 = 6,000 products.raunekk wrote:During 2005, a company produced an average of 2000 products per month. How many products will the company need to produce from 2006 through 2008 in order to increase its monthly average for the period from 2005 through 2008 by 200% over its 2005 average?
1) 148000 2) 172000 3) 200000 4) 264000 5) 288000
Since the company produced an average of 2,000 products per month in 2005, the company produced 2,000 x 12 = 24,000 products in 12 months of 2005 (or in all of 2005).
We can let x = the total number of products made from 2006 through 2008, and we know the number of months from 2005 through 2008 is 4 x 12 months = 48 months. Now let's use the average equation to determine x:
6,000 = (24,000 + x)/48
288,000 = 24,000 + x
x = 264,000
Answer: D
Jeffrey Miller
Head of GMAT Instruction
[email protected]
See why Target Test Prep is rated 5 out of 5 stars on BEAT the GMAT. Read our reviews
GMAT/MBA Expert
 [email protected]
 Elite Legendary Member
 Posts: 10392
 Joined: 23 Jun 2013
 Location: Palo Alto, CA
 Thanked: 2867 times
 Followed by:508 members
 GMAT Score:800
Hi All,
Although the prompt does not explicitly state it, we're meant to infer that the company continues to produce products EVERY month (in the years 2005 through 2008, inclusive). A 200% increase in the monthly average (from 2005) would be 6,000 products per month for the ENTIRE 4YEAR period.
Thus, the TOTAL number of products produced during those 4 years would have to be (48 months)(6,000 products/month) = 288,000 products.
In 2005, the total number of products produced was (12 months)(2,000 products/month) = 24,000 products.
To hit the 288,000 product grand total, the company would have to produce 288,000  24,000 = 264,000 products in the years 2006  2008.
Final Answer: D
GMAT assassins aren't born, they're made,
Rich
Although the prompt does not explicitly state it, we're meant to infer that the company continues to produce products EVERY month (in the years 2005 through 2008, inclusive). A 200% increase in the monthly average (from 2005) would be 6,000 products per month for the ENTIRE 4YEAR period.
Thus, the TOTAL number of products produced during those 4 years would have to be (48 months)(6,000 products/month) = 288,000 products.
In 2005, the total number of products produced was (12 months)(2,000 products/month) = 24,000 products.
To hit the 288,000 product grand total, the company would have to produce 288,000  24,000 = 264,000 products in the years 2006  2008.
Final Answer: D
GMAT assassins aren't born, they're made,
Rich