A disc jockey plays only hip - hop and country - western

This topic has expert replies
Moderator
Posts: 2212
Joined: Sun Oct 15, 2017 1:50 pm
Followed by:6 members

Timer

00:00

Your Answer

A

B

C

D

E

Global Stats

Source: Princeton Review

A disc jockey plays only hip - hop and country - western records. If the disc jockey plays four country - western records for every seven hip - hop records, what fraction of the records he plays are country - western?

A. 4/5
B. 7/11
C. 4/7
D. 4/11
E. 1/28

The OA is D

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 20, 2019 4:09 am

Timer

00:00

Your Answer

A

B

C

D

E

Global Stats

BTGmoderatorLU wrote:Source: Princeton Review

A disc jockey plays only hip - hop and country - western records. If the disc jockey plays four country - western records for every seven hip - hop records, what fraction of the records he plays are country - western?

A. 4/5
B. 7/11
C. 4/7
D. 4/11
E. 1/28

The OA is D
Say the number of hip - hop records is 7 and the number of country - western records is 4. Thus, the total number of records = 4 + 7 = 11.

Thus, 4/11 of the records he plays are country - western.

The correct answer: D

Hope this helps!

-Jay
_________________
Manhattan Review

Locations: Manhattan Review Kukatpally | GMAT Prep Jayanagar | GRE Prep Tarnaka | Madhapur GRE Coaching | and many more...

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

Legendary Member
Posts: 2214
Joined: Fri Mar 02, 2018 2:22 pm
Followed by:5 members

edited

by deloitte247 » Sun Jan 20, 2019 6:50 am

Timer

00:00

Your Answer

A

B

C

D

E

Global Stats

The disc jockey plays 4 country- western record for every seven hip-hop record.
Ratio of country- western record to hip-hop record = 4x : 7x
Total records = 4x+7x=11x
Total Country western record = {4x}{11x}
= {4}/{11 }of the Total records

$$answer\ is\ Option\ D$$