Beth received 3/10 of the votes cast in a certian election : Problem Solving (PS)

My Profile Logout

Test's Subscription Expires:

My Follow Feed Kudos My Error Log

Messages and Replies

Settings Mark All Read

See All

Applicant Notifications

Settings Mark All Read

See All

Global notifications

Settings Mark All Read

See All

Beth received 3/10 of the votes cast in a certian election

Sort by Date

Sort by Kudos

Author

Message

TAGS:

Hide Tags

Manager

Joined: 31 Oct 2011

Posts: 223

Beth received 3/10 of the votes cast in a certian election [#permalink]

Show Tags

07 Mar 2012, 15:34

00:00

Difficulty:

45% (medium)

Question Stats:

63% (01:19) correct

37% (01:00) wrong

based on 302 sessions

HideShow timer Statistics

Beth received 3/10 of the votes cast in a certian election. What franction of the other votes cast would she have needed in order to have received 1/2 of the votes cast?

A. 1/5
B. 2/7
C. 3/10
D. 7/20
E. 1/2

Spoiler: OA

Math Expert

Joined: 02 Sep 2009

Posts: 54544

Re: PT #11 PS 3 Q 16 [#permalink]

Show Tags

07 Mar 2012, 15:48

eybrj2 wrote:

Let the total votes be 10. Beth received 3 votes, other votes 10-3=7. In order to have received 1/2 of the votes she needed 5 votes so 2 more, which is 2/7 of the other votes.

Answer: B.
_________________

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

Signature Read More

Manager

Joined: 08 Nov 2014

Posts: 81

Location: India

GPA: 3

WE: Engineering (Manufacturing)

Re: Beth received 3/10 of the votes cast in a certian election [#permalink]

Show Tags

10 Jan 2015, 09:43

At first I got it totally wrong !!

Sum of fractions of the Total votes casted 1.

x+ 3/10=1/2
x=2/10=1/5 ..................... So, beth needs another 1/5 th the total vote casted.

Remaining Fraction = 1- 3/10 = 7/10

Required Fraction = (1/5)/(7/10) = 2/7

eybrj2 wrote:

_________________

"Arise, Awake and Stop not till the goal is reached"

Signature Read More

SVP

Status: The Best Or Nothing

Joined: 27 Dec 2012

Posts: 1813

Location: India

Concentration: General Management, Technology

WE: Information Technology (Computer Software)

Re: Beth received 3/10 of the votes cast in a certian election [#permalink]

Show Tags

12 Jan 2015, 21:29

.................... Beth .................... Non Beth ................. Total

Initial votes..... \(\frac{3}{10}\) ....................... \(\frac{7}{10}\) ......................... 1 (Assumed)

Requirement...... \(\frac{3}{10} + \frac{2}{10} = \frac{5}{10}\) ..................... \(\frac{7}{10} - \frac{2}{10} = \frac{5}{10}\) ...... 1

\(Fraction = \frac{\frac{2}{10}}{\frac{7}{10}} = \frac{2}{7}\)

Answer = B
_________________

Kindly press "+1 Kudos" to appreciate

Signature Read More

Non-Human User

Joined: 09 Sep 2013

Posts: 10646

Re: Beth received 3/10 of the votes cast in a certian election [#permalink]

Show Tags

17 Aug 2017, 23:17

Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
_________________

Signature Read More