Last visit was: 09 Jul 2025, 02:38 It is currently 09 Jul 2025, 02:38
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
Sub 505 Level|   Algebra|                           
User avatar
AbdurRakib
Joined: 11 May 2014
Last visit: 22 Jun 2025
Posts: 468
Own Kudos:
41,787
 [34]
Given Kudos: 220
Status:I don't stop when I'm Tired,I stop when I'm done
Location: Bangladesh
Concentration: Finance, Leadership
GPA: 2.81
WE:Business Development (Real Estate)
Posts: 468
Kudos: 41,787
 [34]
8
Kudos
Add Kudos
26
Bookmarks
Bookmark this Post
Most Helpful Reply
User avatar
BrentGMATPrepNow
User avatar
Major Poster
Joined: 12 Sep 2015
Last visit: 13 May 2024
Posts: 6,756
Own Kudos:
34,035
 [20]
Given Kudos: 799
Location: Canada
Expert
Expert reply
Posts: 6,756
Kudos: 34,035
 [20]
9
Kudos
Add Kudos
11
Bookmarks
Bookmark this Post
User avatar
paisaj87
Joined: 06 Jan 2015
Last visit: 30 Jan 2017
Posts: 48
Own Kudos:
74
 [11]
Given Kudos: 7
Posts: 48
Kudos: 74
 [11]
8
Kudos
Add Kudos
2
Bookmarks
Bookmark this Post
General Discussion
User avatar
stonecold
Joined: 12 Aug 2015
Last visit: 09 Apr 2024
Posts: 2,249
Own Kudos:
3,462
 [3]
Given Kudos: 893
GRE 1: Q169 V154
GRE 1: Q169 V154
Posts: 2,249
Kudos: 3,462
 [3]
3
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Here the ratio of three people => 3:4:6
hence 13x=780=> x=60
Now makota was piad 3x => 3*60=> 180
Smash D
User avatar
ScottTargetTestPrep
User avatar
Target Test Prep Representative
Joined: 14 Oct 2015
Last visit: 08 Jul 2025
Posts: 21,064
Own Kudos:
26,114
 [7]
Given Kudos: 296
Status:Founder & CEO
Affiliations: Target Test Prep
Location: United States (CA)
Expert
Expert reply
Active GMAT Club Expert! Tag them with @ followed by their username for a faster response.
Posts: 21,064
Kudos: 26,114
 [7]
4
Kudos
Add Kudos
3
Bookmarks
Bookmark this Post
AbdurRakib
Makoto, Nishi, and Ozuro were paid a total of $780 for waxing the floors at their school. Each was paid in proportion to the number of hours he or she worked. If Makoto worked 15 hours, Nishi worked 20 hours, and Ozuro worked 30 hours, how much was Makoto paid?

A) $52
B) $117
C) $130
D) $180
E) $234

We are given that Makoto, Nishi, and Ozuro were paid a total of $780 for waxing the floors at their school. Each was paid in proportion to the number of hours he or she worked. Since Makoto worked 15 hours, Nishi worked 20 hours, and Ozuro worked 30 hours, we can create the following proportion:

Makoto payment : Nishi payment : Ozuro payment = 15x : 20x : 30x

We can create the following equation to determine x:

15x + 20x + 30x = 780

65x = 780

x = 12

Since x = 12, Makoto was paid 15 x 12 = 180 dollars.

Alternate Solution:

Since we know that Makoto’s payment was equivalent to 15x, we know that his payment must be a multiple of 15. Since 180 is the only multiple of 15, the correct answer must be 180.

Answer: D
User avatar
Pritishd
User avatar
UNC Kenan Flagler Moderator
Joined: 18 Jul 2015
Last visit: 05 Jul 2025
Posts: 235
Own Kudos:
Given Kudos: 120
GMAT 1: 530 Q43 V20
WE:Analyst (Consumer Packaged Goods)
GMAT 1: 530 Q43 V20
Posts: 235
Kudos: 287
Kudos
Add Kudos
Bookmarks
Bookmark this Post
ScottTargetTestPrep
AbdurRakib
Makoto, Nishi, and Ozuro were paid a total of $780 for waxing the floors at their school. Each was paid in proportion to the number of hours he or she worked. If Makoto worked 15 hours, Nishi worked 20 hours, and Ozuro worked 30 hours, how much was Makoto paid?

A) $52
B) $117
C) $130
D) $180
E) $234

We are given that Makoto, Nishi, and Ozuro were paid a total of $780 for waxing the floors at their school. Each was paid in proportion to the number of hours he or she worked. Since Makoto worked 15 hours, Nishi worked 20 hours, and Ozuro worked 30 hours, we can create the following proportion:

Makoto payment : Nishi payment : Ozuro payment = 15x : 20x : 30x

We can create the following equation to determine x:

15x + 20x + 30x = 780

65x = 780

x = 12

Since x = 12, Makoto was paid 15 x 12 = 180 dollars.

Alternate Solution:

Since we know that Makoto’s payment was equivalent to 15x, we know that his payment must be a multiple of 15. Since 180 is the only multiple of 15, the correct answer must be 180.

Answer: D

Hi Scott

Does the variable X represent the per hour pay? As when we create the equation 65X=780 we are trying to create (total hours worked*per hour pay = total pay)?

Warm Regards,
Pritish
User avatar
ScottTargetTestPrep
User avatar
Target Test Prep Representative
Joined: 14 Oct 2015
Last visit: 08 Jul 2025
Posts: 21,064
Own Kudos:
Given Kudos: 296
Status:Founder & CEO
Affiliations: Target Test Prep
Location: United States (CA)
Expert
Expert reply
Active GMAT Club Expert! Tag them with @ followed by their username for a faster response.
Posts: 21,064
Kudos: 26,114
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Pritishd
ScottTargetTestPrep
AbdurRakib
Makoto, Nishi, and Ozuro were paid a total of $780 for waxing the floors at their school. Each was paid in proportion to the number of hours he or she worked. If Makoto worked 15 hours, Nishi worked 20 hours, and Ozuro worked 30 hours, how much was Makoto paid?

A) $52
B) $117
C) $130
D) $180
E) $234

We are given that Makoto, Nishi, and Ozuro were paid a total of $780 for waxing the floors at their school. Each was paid in proportion to the number of hours he or she worked. Since Makoto worked 15 hours, Nishi worked 20 hours, and Ozuro worked 30 hours, we can create the following proportion:

Makoto payment : Nishi payment : Ozuro payment = 15x : 20x : 30x

We can create the following equation to determine x:

15x + 20x + 30x = 780

65x = 780

x = 12

Since x = 12, Makoto was paid 15 x 12 = 180 dollars.

Alternate Solution:

Since we know that Makoto’s payment was equivalent to 15x, we know that his payment must be a multiple of 15. Since 180 is the only multiple of 15, the correct answer must be 180.

Answer: D

Hi Scott

Does the variable X represent the per hour pay? As when we create the equation 65X=780 we are trying to create (total hours worked*per hour pay = total pay)?

Warm Regards,
Pritish

Since 15x represents the total amount of money that Makoto was paid, then x does mean the hourly pay.
User avatar
Kinshook
User avatar
Major Poster
Joined: 03 Jun 2019
Last visit: 9 July 2025
Posts: 5,672
Own Kudos:
Given Kudos: 161
Location: India
GMAT 1: 690 Q50 V34
WE:Engineering (Transportation)
Products:
GMAT 1: 690 Q50 V34
Posts: 5,672
Kudos: 5,183
Kudos
Add Kudos
Bookmarks
Bookmark this Post
AbdurRakib
Makoto, Nishi, and Ozuro were paid a total of $780 for waxing the floors at their school. Each was paid in proportion to the number of hours he or she worked. If Makoto worked 15 hours, Nishi worked 20 hours, and Ozuro worked 30 hours, how much was Makoto paid?

A) $52
B) $117
C) $130
D) $180
E) $234

OG 2017 New Question

Let the per hour rate be x
15x + 20x + 30x = 65x = 780
x = 12

Makoto was paid = 15x = 15*12= $180

IMO D

Posted from my mobile device
User avatar
Abhishek009
User avatar
Board of Directors
Joined: 11 Jun 2011
Last visit: 21 Apr 2025
Posts: 5,968
Own Kudos:
5,154
 [1]
Given Kudos: 463
Status:QA & VA Forum Moderator
Location: India
GPA: 3.5
WE:Business Development (Commercial Banking)
Posts: 5,968
Kudos: 5,154
 [1]
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
AbdurRakib
Makoto, Nishi, and Ozuro were paid a total of $780 for waxing the floors at their school. Each was paid in proportion to the number of hours he or she worked. If Makoto worked 15 hours, Nishi worked 20 hours, and Ozuro worked 30 hours, how much was Makoto paid?

A) $52
B) $117
C) $130
D) $180
E) $234

OG 2017 New Question

\(780*\frac{15}{(15+20+30)}\)

\(780*\frac{15}{65}=180\), Answer must be (D)
User avatar
prashant0099
Joined: 25 Jan 2016
Last visit: 20 Dec 2020
Posts: 48
Own Kudos:
Given Kudos: 65
Location: India
Schools: Alberta '23
GPA: 3.9
WE:Engineering (Energy)
Schools: Alberta '23
Posts: 48
Kudos: 30
Kudos
Add Kudos
Bookmarks
Bookmark this Post
OG-21 explanation

Makoto, Nishi, and Ozuro worked a total of 15 + 20 + 30 = 65 hours and were paid a total of $780. Each was paid in proportion to the number of hours he or she worked. Therefore, Makoto was paid
15
65
($780) = $180.

AbdurRakib
Makoto, Nishi, and Ozuro were paid a total of $780 for waxing the floors at their school. Each was paid in proportion to the number of hours he or she worked. If Makoto worked 15 hours, Nishi worked 20 hours, and Ozuro worked 30 hours, how much was Makoto paid?

A) $52
B) $117
C) $130
D) $180
E) $234

OG 2017 New Question
User avatar
GMATinsight
User avatar
Major Poster
Joined: 08 Jul 2010
Last visit: 08 Jul 2025
Posts: 6,371
Own Kudos:
Given Kudos: 128
Status:GMAT/GRE Tutor l Admission Consultant l On-Demand Course creator
Location: India
GMAT: QUANT+DI EXPERT
Schools: IIM (A) ISB '24
GMAT 1: 750 Q51 V41
WE:Education (Education)
Products:
Expert
Expert reply
Schools: IIM (A) ISB '24
GMAT 1: 750 Q51 V41
Posts: 6,371
Kudos: 15,566
Kudos
Add Kudos
Bookmarks
Bookmark this Post
AbdurRakib
Makoto, Nishi, and Ozuro were paid a total of $780 for waxing the floors at their school. Each was paid in proportion to the number of hours he or she worked. If Makoto worked 15 hours, Nishi worked 20 hours, and Ozuro worked 30 hours, how much was Makoto paid?

A) $52
B) $117
C) $130
D) $180
E) $234

OG 2017 New Question

Answer: Option D

Video solution by GMATinsight

User avatar
avigutman
Joined: 17 Jul 2019
Last visit: 06 Jul 2025
Posts: 1,294
Own Kudos:
Given Kudos: 66
Location: Canada
GMAT 1: 780 Q51 V45
GMAT 2: 780 Q50 V47
GMAT 3: 770 Q50 V45
Expert
Expert reply
GMAT 3: 770 Q50 V45
Posts: 1,294
Kudos: 1,888
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Video solution from Quant Reasoning:
Subscribe for more: https://www.youtube.com/QuantReasoning? ... irmation=1
User avatar
unraveled
Joined: 07 Mar 2019
Last visit: 10 Apr 2025
Posts: 2,727
Own Kudos:
Given Kudos: 763
Location: India
WE:Sales (Energy)
Posts: 2,727
Kudos: 2,161
Kudos
Add Kudos
Bookmarks
Bookmark this Post
AbdurRakib
Makoto, Nishi, and Ozuro were paid a total of $780 for waxing the floors at their school. Each was paid in proportion to the number of hours he or she worked. If Makoto worked 15 hours, Nishi worked 20 hours, and Ozuro worked 30 hours, how much was Makoto paid?

A) $52
B) $117
C) $130
D) $180
E) $234

OG 2017 New Question
M:N:O = 15:20:30 = 3*5:4*5:6*5

Since its a ratio problem, the answer must be a multiple of 15(3x5).
Only D is possible.

Answer D.
User avatar
bumpbot
User avatar
Non-Human User
Joined: 09 Sep 2013
Last visit: 04 Jan 2021
Posts: 37,360
Own Kudos:
Posts: 37,360
Kudos: 1,010
Kudos
Add Kudos
Bookmarks
Bookmark this Post
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.
Moderators:
Math Expert
102604 posts
PS Forum Moderator
679 posts