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

It is currently 08 Dec 2019, 13:35

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

The usage of sugar of a family of 3 adults and 2 children was 13 kg in

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

Hide Tags

Find Similar Topics 
e-GMAT Representative
User avatar
V
Joined: 04 Jan 2015
Posts: 3158
The usage of sugar of a family of 3 adults and 2 children was 13 kg in  [#permalink]

Show Tags

New post 26 Jul 2018, 00:35
00:00
A
B
C
D
E

Difficulty:

  35% (medium)

Question Stats:

68% (01:24) correct 32% (01:49) wrong based on 116 sessions

HideShow timer Statistics

The usage of sugar of a family of 3 adults and 2 children was 13 kg in a certain month. If the monthly average usage of sugar for an adult is 3 kg and for a child is 1 kg, by what percent the specific month’s sugar consumption was more or less than the typical usage?

    A. 22.22% more
    B. 18.18% more
    C. 15.38% more
    D. 15.38% less
    E. 18.18% less

_________________
MBA Section Director
User avatar
V
Affiliations: GMATClub
Joined: 22 May 2017
Posts: 2687
GPA: 4
WE: Engineering (Computer Software)
GMAT ToolKit User Reviews Badge
Re: The usage of sugar of a family of 3 adults and 2 children was 13 kg in  [#permalink]

Show Tags

New post 26 Jul 2018, 02:15
monthly average usage of sugar for an adult is 3 kg

monthly average usage of sugar for a child is 1 kg

monthly average usage of sugar for a family of 3 adults and 2 children = 3 * 3 + 2 * 1 = 9 + 2 = 11

Actual usage of sugar of a family of 3 adults and 2 children was 13 kg

percent of specific month’s sugar consumption over the typical usage = \(\frac{difference}{original} * 100\)

=> \(\frac{13-11}{11} * 100\) = \(\frac{2}{11} * 100\)

= 18.18% more more than average monthly consumption because specify month consumption > average monthly consumption.

Hence option B
_________________
e-GMAT Representative
User avatar
V
Joined: 04 Jan 2015
Posts: 3158
Re: The usage of sugar of a family of 3 adults and 2 children was 13 kg in  [#permalink]

Show Tags

New post 30 Jul 2018, 05:50

Solution



Given:
    • The monthly average usage of sugar for an adult is 3 kg and for a child is 1 kg
    • The usage of sugar of a family of 3 adults and 2 children was 13 kg in a certain month

To find:
    • By what percent the specific month’s sugar consumption was more or less than the typical usage

Approach and Working:
As per the typical usage,
    • Total usage of 3 adults in a month = 3 * 3 = 9 kg
    • Total usage of 2 children in a month = 2 * 1 = 2 kg
    • So, total usage of all = 9 + 2 = 11 kg

In the specified month, total usage is 13 kg.

As 13 > 11, we can say the usage is more than typical usage.
    • Percentage more in terms of usage = \(\frac{13 – 11}{11}\) * 100 = 18.18%

Hence, the correct answer is option B.

Answer: B
_________________
EMPOWERgmat Instructor
User avatar
V
Status: GMAT Assassin/Co-Founder
Affiliations: EMPOWERgmat
Joined: 19 Dec 2014
Posts: 15669
Location: United States (CA)
GMAT 1: 800 Q51 V49
GRE 1: Q170 V170
Re: The usage of sugar of a family of 3 adults and 2 children was 13 kg in  [#permalink]

Show Tags

New post 27 Sep 2018, 20:15
Hi All,

We're told that the usage of sugar of a family of 3 adults and 2 children was 13 kg in a certain month and the monthly AVERAGE usage of sugar for an adult is 3 kg and for a child is 1 kg. We're asked by what percent THIS specific month’s sugar consumption was more or less than the typical usage. The wording of this question is a little 'clunky', but the intent is to test us on the Percentage Change Formula:

Percent Change = (New - Old)/(Old) = Difference/Original

With 3 adults and 2 children, the AVERAGE monthly usage would give us a total of (3)(3) + (2)(1) = 11 kg of sugar.
This month, the total is 13 kg though, which is clearly an INCREASE.
The percent change is (13 - 11)/11 = 2/11 = a little more than 18%

Final Answer:

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


The Course Used By GMAT Club Moderators To Earn 750+

souvik101990 Score: 760 Q50 V42 ★★★★★
ENGRTOMBA2018 Score: 750 Q49 V44 ★★★★★
GMAT Club Bot
Re: The usage of sugar of a family of 3 adults and 2 children was 13 kg in   [#permalink] 27 Sep 2018, 20:15
Display posts from previous: Sort by

The usage of sugar of a family of 3 adults and 2 children was 13 kg in

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





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