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

 It is currently 17 Oct 2019, 01:01

### 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

# In a certain village, m litres of water are required per household per

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

### Hide Tags

Math Expert
Joined: 02 Sep 2009
Posts: 58427
In a certain village, m litres of water are required per household per  [#permalink]

### Show Tags

13 May 2016, 04:52
1
3
00:00

Difficulty:

25% (medium)

Question Stats:

70% (01:13) correct 30% (01:23) wrong based on 216 sessions

### HideShow timer Statistics

In a certain village, m litres of water are required per household per month. At this rate, if there are n households in the village, how long (in months) will p litres of water last?

A. p /mn
B. mn / p
C. mp / n
D. np / m
E. npm

_________________
Senior Manager
Joined: 31 Mar 2016
Posts: 375
Location: India
Concentration: Operations, Finance
GMAT 1: 670 Q48 V34
GPA: 3.8
WE: Operations (Commercial Banking)
Re: In a certain village, m litres of water are required per household per  [#permalink]

### Show Tags

13 May 2016, 07:10
1
Total water required per month for N houses = M x N
Total Water Available = P
Hence time until which this will be available = P/ MN
Answer is A
Board of Directors
Status: QA & VA Forum Moderator
Joined: 11 Jun 2011
Posts: 4775
Location: India
GPA: 3.5
WE: Business Development (Commercial Banking)
Re: In a certain village, m litres of water are required per household per  [#permalink]

### Show Tags

13 May 2016, 10:28
1
Bunuel wrote:
In a certain village, m litres of water are required per household per month. At this rate, if there are n households in the village, how long (in months) will p litres of water last?

A. p /mn
B. mn / p
C. mp / n
D. np / m
E. npm

Quote:
m litres of water are required per household per month.... there are n households in the village

Monthly requirement of water by the village is m*n =mn litres

Quote:
how long (in months) will p litres of water last?

P litres water will last for $$\frac{p}{mn}$$ Litres

Answer will be (A)
_________________
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 )
Intern
Joined: 06 May 2016
Posts: 14
WE: Education (Education)
In a certain village, m litres of water are required per household per  [#permalink]

### Show Tags

13 May 2016, 15:40
1
I find it much easier to understand with real numbers, so choose (almost) any numbers to replace m,n and p:

In a certain village, m10 litres of water are required per household per month. At this rate, if there are n5 households in the village, how long (in months) will p200 litres of water last?

Reading with numbers it is super easy now.

Water required is 10*5 =50 (m*n)
Water available is 200 (p)

It will last 4 months (p/m*n)

Answer (A)
VP
Joined: 05 Mar 2015
Posts: 1012
Re: In a certain village, m litres of water are required per household per  [#permalink]

### Show Tags

29 Jan 2017, 07:39
Bunuel wrote:
In a certain village, m litres of water are required per household per month. At this rate, if there are n households in the village, how long (in months) will p litres of water last?

A. p /mn
B. mn / p
C. mp / n
D. np / m
E. npm

Alternative approach

Just work over units in each options

A. p/mn =
p=lts
m= lts/house/month
n= house

thus p/mn = month....which is time required ....

Ans A
EMPOWERgmat Instructor
Status: GMAT Assassin/Co-Founder
Affiliations: EMPOWERgmat
Joined: 19 Dec 2014
Posts: 15263
Location: United States (CA)
GMAT 1: 800 Q51 V49
GRE 1: Q170 V170
Re: In a certain village, m litres of water are required per household per  [#permalink]

### Show Tags

02 Feb 2018, 11:52
Hi All,

This question can be solved by TESTing VALUES.

IF...
M = 2
N = 3

Then we know that 2 liters are required per household per month and that there are 3 households in the village. In this scenario, we will need 6 liters per month.

P = 12 liters means that this water will last for 2 months, so we're looking for an answer that equals 2 when we plug in the three VALUES chosen.

There's only one answer that matches..

Final Answer:

GMAT assassins aren't born, they're made,
Rich
_________________
Contact Rich at: Rich.C@empowergmat.com

The Course Used By GMAT Club Moderators To Earn 750+

souvik101990 Score: 760 Q50 V42 ★★★★★
ENGRTOMBA2018 Score: 750 Q49 V44 ★★★★★
Re: In a certain village, m litres of water are required per household per   [#permalink] 02 Feb 2018, 11:52
Display posts from previous: Sort by

# In a certain village, m litres of water are required per household per

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

 Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne