Last visit was: 23 Apr 2026, 12:41 It is currently 23 Apr 2026, 12:41
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
User avatar
metallicafan
User avatar
Retired Moderator
Joined: 04 Oct 2009
Last visit: 26 Aug 2020
Posts: 755
Own Kudos:
Given Kudos: 109
Status:2000 posts! I don't know whether I should feel great or sad about it! LOL
Location: Peru
Concentration: Finance, SMEs, Developing countries, Public sector and non profit organizations
Schools:Harvard, Stanford, Wharton, MIT & HKS (Government)
GPA: 4.0
WE 1: Economic research
WE 2: Banking
WE 3: Government: Foreign Trade and SMEs
Posts: 755
Kudos: 4,501
Kudos
Add Kudos
Bookmarks
Bookmark this Post
avatar
Keynesmba
Joined: 31 Mar 2012
Last visit: 16 Sep 2012
Posts: 11
Own Kudos:
2
 [1]
Posts: 11
Kudos: 2
 [1]
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
User avatar
GreginChicago
Joined: 06 Feb 2012
Last visit: 05 Jul 2012
Posts: 84
Own Kudos:
181
 [1]
Given Kudos: 16
WE:Project Management (Other)
Posts: 84
Kudos: 181
 [1]
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
User avatar
BN1989
Joined: 12 Oct 2011
Last visit: 04 Mar 2014
Posts: 97
Own Kudos:
918
 [1]
Given Kudos: 23
GMAT 1: 700 Q48 V37
GMAT 2: 720 Q48 V40
GMAT 2: 720 Q48 V40
Posts: 97
Kudos: 918
 [1]
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
I read it, but also don't use the charts for rate problems. I think it might be helpful, if you prefer a more structured approach, but basically you just have three variables for one or more objects with which to work with. Drawing a table for this seems to be a little too time consuming.
User avatar
KarishmaB
Joined: 16 Oct 2010
Last visit: 23 Apr 2026
Posts: 16,441
Own Kudos:
Given Kudos: 484
Location: Pune, India
Expert
Expert reply
Active GMAT Club Expert! Tag them with @ followed by their username for a faster response.
Posts: 16,441
Kudos: 79,396
Kudos
Add Kudos
Bookmarks
Bookmark this Post
metallicafan
Hi,

Has someone studied the Rates chapter of the Manhattan Guide?, Is it useful?

I have read it very fast and I think that makes this topic complicated, while it is very simple.
I think that it is just important to know some basic formulas. Period. However, they use charts that I have never used in my life!

Please, give me your feedback to confirm whether I should study or skip it.

Thank you!

You need to know only two things to solve any rates problem:
1. Rates are additive (not time) - e.g. if A's speed is 1/2 work per hr and B's speed is 1/3 work per hr, together they do (1/2 + 1/3) work per hr.
Instead if we know that A does the work in 2 hrs and B does it in 3 hrs, they DO NOT take 5 hrs together! (obviously!)
2. Work = Rate*Time
If they do 1 work, then Rate is inverse of time (Say if A takes 3 hrs to complete a work, his rate is 1/3)
If they are working together, use their combined rate in the formula (since you can add rates)
User avatar
wallstreetbarbie
Joined: 06 Oct 2011
Last visit: 23 Apr 2012
Posts: 156
Own Kudos:
Given Kudos: 10
GMAT Date: 06-30-2012
GPA: 3.7
WE:Accounting (Insurance)
Posts: 156
Kudos: 84
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Truth be told I found the chapter confusing. My MGMAT teacher had a handout for it which he created and it absolutely simplified the chapter.
User avatar
restore
Joined: 30 Jul 2011
Last visit: 27 Nov 2012
Posts: 82
Own Kudos:
Given Kudos: 24
Location: United States (NJ)
Concentration: General Management, Finance
GMAT 1: 520 Q40 V21
GPA: 2.95
GMAT 1: 520 Q40 V21
Posts: 82
Kudos: 41
Kudos
Add Kudos
Bookmarks
Bookmark this Post
wallstreetbarbie
Truth be told I found the chapter confusing. My MGMAT teacher had a handout for it which he created and it absolutely simplified the chapter.
Any chance we can get a copy of that handout?

I find rate problems to be rather difficult.



Archived Topic
Hi there,
This topic has been closed and archived due to inactivity or violation of community quality standards. No more replies are possible here.
Where to now? Join ongoing discussions on thousands of quality questions in our Quantitative Questions Forum
Still interested in this question? Check out the "Best Topics" block above for a better discussion on this exact question, as well as several more related questions.
Thank you for understanding, and happy exploring!