It is currently 20 Nov 2018, 12:07
My Tests

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.

16 ounces of birdseed mix contains 10% sesame seed by weigh

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
1 KUDOS received
GMAT Club Legend
GMAT Club Legend
User avatar
Joined: 07 Jun 2014
Posts: 4721
GRE 1: Q167 V156
WE: Business Development (Energy and Utilities)
Followers: 91

Kudos [?]: 1626 [1] , given: 389

CAT Tests
16 ounces of birdseed mix contains 10% sesame seed by weigh [#permalink] New post 02 Jun 2018, 03:57
1
This post received
KUDOS
Expert's post
00:00

Question Stats:

33% (01:42) correct 66% (01:35) wrong based on 3 sessions
16 ounces of birdseed mix contains 10% sesame seed by weight. How much sesame seed must be added to produce a mix that is 20% sesame seed by weight?

(A) 1 ounce
(B) 1.6 ounces
(C) 2 ounces
(D) 2.4 ounces
(E) 4 ounces
[Reveal] Spoiler: OA

_________________

Sandy
If you found this post useful, please let me know by pressing the Kudos Button

Try our free Online GRE Test

Manager
Manager
Joined: 29 Nov 2017
Posts: 190
Location: United States
GRE 1: Q142 V146
WE: Information Technology (Computer Software)
Followers: 0

Kudos [?]: 77 [0], given: 99

Re: 16 ounces of birdseed mix contains 10% sesame seed by weigh [#permalink] New post 04 Jun 2018, 06:26
anyone pls explain
1 KUDOS received
GMAT Club Legend
GMAT Club Legend
User avatar
Joined: 07 Jun 2014
Posts: 4721
GRE 1: Q167 V156
WE: Business Development (Energy and Utilities)
Followers: 91

Kudos [?]: 1626 [1] , given: 389

CAT Tests
Re: 16 ounces of birdseed mix contains 10% sesame seed by weigh [#permalink] New post 05 Jun 2018, 13:06
1
This post received
KUDOS
Expert's post
We have 16 Oz birdseed. And 10% is sesame seed.

At 10% of 16 Oz we have \(\frac{10}{100}\times 16=1.6\) Oz sesame seeds

Now lets say we add \(x\) oz of sesame seeds more to the mixture.

Total weight of sesame seeds in the new mixture=1.6 +x.

Weight of the mixture= 16+x. (Remember you added extra weight to the total mixture not just the sesame part)


Now the new mixture has to be 20% sesame by weight

\(\frac{1.6+x}{16+x}= 20%= \frac{20}{100}\)

\(\frac{1.6+x}{16+x}=0.2\)
or \(1.6+x= 0.2(16+x)\)
or \(1.6+x= 3.2+0.2x\)
or \(0.8x= 1.6\)

Thus \(x=2\) Oz.




Note
_________________

Sandy
If you found this post useful, please let me know by pressing the Kudos Button

Try our free Online GRE Test

Re: 16 ounces of birdseed mix contains 10% sesame seed by weigh   [#permalink] 05 Jun 2018, 13:06
Display posts from previous: Sort by

16 ounces of birdseed mix contains 10% sesame seed by weigh

  Question banks Downloads My Bookmarks Reviews Important topics  


GRE Prep Club Forum Home| About| Terms and Conditions and Privacy Policy| GRE Prep Club Rules| Contact

Powered by phpBB © phpBB Group

Kindly note that the GRE® test is a registered trademark of the Educational Testing Service®, and this site has neither been reviewed nor endorsed by ETS®.