It is currently Mon Oct 22, 2018 12:48 am

 All times are UTC - 5 hours [ DST ]

 Page 1 of 1 [ 2 posts ]
 Print view Previous topic | Next topic
Author Message
 Post subject: GMAT PercentagePosted: Fri Jul 27, 2012 2:49 am

Joined: Sun May 30, 2010 3:15 am
Posts: 424
For any positive x, y and k, if kx is n% of y, then what percentage must x be of y?
A. (n/k)%
B. (n + k)%
C. (nk)%
D. (nk)%
E. (100 × n/k)%

(A) The statement kx is n% of y means that:
kx = [n / 100] × y
x = y × (n / k / 100)

Therefore x is (n / k)% of y. The correct answer is choice (A).
----------
Hi, there is some ambiguity in your answers. In Math3 Test Q. no. 24, I chose option (A), but you gave answer as (E). Here in Math4 Test Q.no.27 is similar to that question, but here you have given answer as (A), though I chose answer (E). Can you explain this?

Top

 Post subject: Re: GMAT PercentagePosted: Fri Jul 27, 2012 2:50 am

Joined: Sun May 30, 2010 2:23 am
Posts: 498
Quote:
Hi, there is some ambiguity in your answers. In Math3 Test Q. no. 24, I chose option (A), but you gave answer as (E). Here in Math4 Test Q.no.27 is similar to that question, but here you have given answer as (A), though I chose answer (E). Can you explain this?
These are two similar but DIFFERENT questions. The have different answers. There is no ambiguity in that. Different questions have different answers.

The similar question: http://800score.com/forum/viewtopic.php?f=3&t=5019

Now let's discuss the things these questions have in common.
1. They deal with percentages.
2. No specific integers are given, just variables.

We use the same plan in both questions.
1. Transform wording into algebra.
The statement kx is n% of y means that:
kx = [n / 100] × y

2. Transform the original formula into x = (P / 100) × y, which the same as wording x is P% of y.
x = [(n/k) / 100] × y

A. (n/k)%

Top

 Display posts from previous: All posts1 day7 days2 weeks1 month3 months6 months1 year Sort by AuthorPost timeSubject AscendingDescending
 Page 1 of 1 [ 2 posts ]

 All times are UTC - 5 hours [ DST ]

#### Who is online

Users browsing this forum: No registered users and 5 guests

 You cannot post new topics in this forumYou cannot reply to topics in this forumYou cannot edit your posts in this forumYou cannot delete your posts in this forumYou cannot post attachments in this forum

Search for:
 Jump to:  Select a forum ------------------ GMAT    GMAT: Quantitative Section (Math)    GMAT: Verbal Section    GMAT: Integrated Reasoning    GMAT: General Questions GRE    GRE: Quantitative Reasoning (Math)    GRE: Verbal Reasoning    GRE: General Questions General questions    Other questions