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

It is currently 19 Jun 2018, 11:06

Close

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
Your Progress

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

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

Close

Request Expert Reply

Confirm Cancel

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

The population of a certain country increases at the rate of 30,000

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:

Hide Tags

Expert Post
Math Expert
User avatar
V
Joined: 02 Sep 2009
Posts: 46167
The population of a certain country increases at the rate of 30,000 [#permalink]

Show Tags

New post 02 Jul 2017, 01:50
00:00
A
B
C
D
E

Difficulty:

  25% (medium)

Question Stats:

78% (01:25) correct 22% (02:01) wrong based on 111 sessions

HideShow timer Statistics

The population of a certain country increases at the rate of 30,000 people every month. The population of the country in 2012 was 360 million. In which year would the population of the country be 378 million?

(A) 2060
(B) 2061
(C) 2062
(D) 2063
(E) 2064

_________________

New to the Math Forum?
Please read this: Ultimate GMAT Quantitative Megathread | All You Need for Quant | PLEASE READ AND FOLLOW: 12 Rules for Posting!!!

Resources:
GMAT Math Book | Triangles | Polygons | Coordinate Geometry | Factorials | Circles | Number Theory | Remainders; 8. Overlapping Sets | PDF of Math Book; 10. Remainders | GMAT Prep Software Analysis | SEVEN SAMURAI OF 2012 (BEST DISCUSSIONS) | Tricky questions from previous years.

Collection of Questions:
PS: 1. Tough and Tricky questions; 2. Hard questions; 3. Hard questions part 2; 4. Standard deviation; 5. Tough Problem Solving Questions With Solutions; 6. Probability and Combinations Questions With Solutions; 7 Tough and tricky exponents and roots questions; 8 12 Easy Pieces (or not?); 9 Bakers' Dozen; 10 Algebra set. ,11 Mixed Questions, 12 Fresh Meat

DS: 1. DS tough questions; 2. DS tough questions part 2; 3. DS tough questions part 3; 4. DS Standard deviation; 5. Inequalities; 6. 700+ GMAT Data Sufficiency Questions With Explanations; 7 Tough and tricky exponents and roots questions; 8 The Discreet Charm of the DS; 9 Devil's Dozen!!!; 10 Number Properties set., 11 New DS set.


What are GMAT Club Tests?
Extra-hard Quant Tests with Brilliant Analytics

1 KUDOS received
Retired Moderator
User avatar
P
Joined: 19 Mar 2014
Posts: 974
Location: India
Concentration: Finance, Entrepreneurship
GPA: 3.5
GMAT ToolKit User Premium Member
Re: The population of a certain country increases at the rate of 30,000 [#permalink]

Show Tags

New post 02 Jul 2017, 02:35
1
Bunuel wrote:
The population of a certain country increases at the rate of 30,000 people every month. The population of the country in 2012 was 360 million. In which year would the population of the country be 378 million?

(A) 2060
(B) 2061
(C) 2062
(D) 2063
(E) 2064


Population Increase Rate = 30,000 Per Month

Population in 2012 = 360 Million

Population in x year = 378 Million

378 Million - 360 Million = 18 Million

We want to calculate the year when the population increases by 18 Million

\(= \frac{18,000,000}{30,000} * \frac{1}{12}\) ====> 1/12 as we are converting per month to per year

\(= 50\) Years

Start Year \(= 2012\)

We will add 50 Years \(= 2012 + 50 = 2062\)

Hence, Answer is C
_________________

"Nothing in this world can take the place of persistence. Talent will not: nothing is more common than unsuccessful men with talent. Genius will not; unrewarded genius is almost a proverb. Education will not: the world is full of educated derelicts. Persistence and determination alone are omnipotent."

Best AWA Template: https://gmatclub.com/forum/how-to-get-6-0-awa-my-guide-64327.html#p470475

VP
VP
User avatar
P
Status: Learning
Joined: 20 Dec 2015
Posts: 1159
Location: India
Concentration: Operations, Marketing
GMAT 1: 670 Q48 V36
GRE 1: 314 Q157 V157
GPA: 3.4
WE: Manufacturing and Production (Manufacturing)
CAT Tests
Re: The population of a certain country increases at the rate of 30,000 [#permalink]

Show Tags

New post 02 Jul 2017, 05:13
Imo C
Rate of increase is 30000 per month , so per year it would be 12*30000=3,60,000 people
In 2012 population =360*10^6
In what year the population would be 378*10^6
378*10^6-360*10^6 =18*10^6
Now we have total increment dividing it by by the rate we will get the year
18*10^6/(3,60,000 )=50 years
so 2012+50=2062
hence answer C
_________________

Please give kudos if you found my answers useful

SC Moderator
avatar
D
Joined: 22 May 2016
Posts: 1752
Premium Member CAT Tests
The population of a certain country increases at the rate of 30,000 [#permalink]

Show Tags

New post 03 Jul 2017, 03:29
Bunuel wrote:
The population of a certain country increases at the rate of 30,000 people every month. The population of the country in 2012 was 360 million. In which year would the population of the country be 378 million?

(A) 2060
(B) 2061
(C) 2062
(D) 2063
(E) 2064

1. Increase per year: 30,000 per month * 12 mos. = 360,000 per year --->
\(3.6 * 10^5\)

2. Total increase needed: 378 million - 360 million = 18 million --->
\(18 * 10^6\)

3. # of years = Total increase divided by increase per year:

\(\frac{18 * 10^6}{3.6 * 10^5}\) =

5 x 10 = 50 years

4. Year achieved: 2012 + 50 = 2062

Answer C
_________________

In the depths of winter, I finally learned
that within me there lay an invincible summer.

-- Albert Camus, "Return to Tipasa"

Board of Directors
User avatar
G
Status: QA & VA Forum Moderator
Joined: 11 Jun 2011
Posts: 3509
Location: India
GPA: 3.5
WE: Business Development (Commercial Banking)
GMAT ToolKit User Premium Member
Re: The population of a certain country increases at the rate of 30,000 [#permalink]

Show Tags

New post 03 Jul 2017, 09:22
Bunuel wrote:
The population of a certain country increases at the rate of 30,000 people every month. The population of the country in 2012 was 360 million. In which year would the population of the country be 378 million?

(A) 2060
(B) 2061
(C) 2062
(D) 2063
(E) 2064


Population in 2012 is \(360000000\)
Desired population is \(378000000\)

Net increase is \(378000000 - 360000000 = 18000000\)

Increase in population per year is \(360000\)

So, Number of years required is \(\frac{18000000}{360000} = 50\)

Thus, 50 years from 2012 , ie in 2062 Population will be 378 million, answer will be (C)
_________________

Thanks and Regards

Abhishek....

PLEASE FOLLOW THE RULES FOR POSTING IN QA AND VA FORUM AND USE SEARCH FUNCTION BEFORE POSTING NEW QUESTIONS

How to use Search Function in GMAT Club | Rules for Posting in QA forum | Writing Mathematical Formulas |Rules for Posting in VA forum | Request Expert's Reply ( VA Forum Only )

Manager
Manager
User avatar
B
Joined: 21 Jul 2017
Posts: 113
Location: India
Concentration: Social Entrepreneurship, Leadership
GMAT 1: 650 Q47 V33
GPA: 4
Re: The population of a certain country increases at the rate of 30,000 [#permalink]

Show Tags

New post 20 Sep 2017, 10:49
Population Increase Rate = 30,000 Per Month

Population in 2012 = 360 Million

Population in ? year = 378 Million

378 Million - 360 Million = 18 Million

18 Million / 30,000=600

in years = 600/12 = 50

Start Year =2012

Adding 50 Years =2012+50=2062
Re: The population of a certain country increases at the rate of 30,000   [#permalink] 20 Sep 2017, 10:49
Display posts from previous: Sort by

The population of a certain country increases at the rate of 30,000

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  


GMAT Club MBA Forum Home| About| Terms and Conditions and Privacy Policy| GMAT Club Rules| Contact| Sitemap

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®.