BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course

Redeem

A group of men and women gathered to compete in a marathon.

This topic has expert replies
Post new topic Post Reply
Previous Topic Next Topic
Moderator
Posts: 2599
Joined: Sun Oct 29, 2017 2:08 pm
Followed by:2 members

A group of men and women gathered to compete in a marathon.

by AAPL » Fri Jan 03, 2020 7:07 pm
Manhattan GMAT

A group of men and women gathered to compete in a marathon. Before the competition, each competitor was weighed and the average weight of the female competitors was found to be 120 lbs. What percentage of the competitors were women?

1) The average weight of the men was 150 lb.
2) The average weight of the entire group was twice as close to the average weight of the men as it was to the average weight of the women.

OA B
Top
Source: — Data Sufficiency |

GMAT/MBA Expert

User avatar
GMAT Instructor
Posts: 3008
Joined: Mon Aug 22, 2016 6:19 am
Location: Grand Central / New York
Thanked: 470 times
Followed by:34 members

by Jay@ManhattanReview » Sun Jan 05, 2020 9:08 pm
AAPL wrote:Manhattan GMAT

A group of men and women gathered to compete in a marathon. Before the competition, each competitor was weighed and the average weight of the female competitors was found to be 120 lbs. What percentage of the competitors were women?

1) The average weight of the men was 150 lb.
2) The average weight of the entire group was twice as close to the average weight of the men as it was to the average weight of the women.

OA B
Let's take each statement one by one.

1) The average weight of the men was 150 lb.

We only know the average weights of men and women. Can't determine the percentage of women competitors. Insufficient.

2) The average weight of the entire group was twice as close to the average weight of the men as it was to the average weight of the women.

Close the average of one group to the group average, proportionately larger the count of the group is. Thus, given that the average weight of the entire group was twice as close to the average weight of the men as it was to the average weight of the women, the ratio of men : women :: 2 : 1.

The correct answer: B

Hope this helps!

-Jay
_________________
Manhattan Review

Locations: Manhattan Review Visakhapatnam | GMAT Prep Warangal | GRE Prep Dilsukhnagar | Begumpet GRE Coaching | and many more...

Schedule your free consultation with an experienced GMAT Prep Advisor! Click here.

Thus, the percentage of women competitors = [1/(2 + 1)]*100% = 33.33%
Top
Post new topic Post Reply
• Page 1 of 1