Last visit was: 19 Jun 2025, 02:58 It is currently 19 Jun 2025, 02:58
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
jeeteshsingh
Joined: 22 Dec 2009
Last visit: 03 Aug 2023
Posts: 178
Own Kudos:
994
 [14]
Given Kudos: 48
Posts: 178
Kudos: 994
 [14]
1
Kudos
Add Kudos
13
Bookmarks
Bookmark this Post
Most Helpful Reply
User avatar
Bunuel
User avatar
Math Expert
Joined: 02 Sep 2009
Last visit: 19 June 2025
Posts: 102,138
Own Kudos:
733,590
 [6]
Given Kudos: 93,936
Products:
Expert
Expert reply
Active GMAT Club Expert! Tag them with @ followed by their username for a faster response.
Posts: 102,138
Kudos: 733,590
 [6]
6
Kudos
Add Kudos
Bookmarks
Bookmark this Post
User avatar
AtifS
Joined: 20 Jan 2010
Last visit: 04 Jan 2017
Posts: 217
Own Kudos:
483
 [5]
Given Kudos: 260
Status:Not afraid of failures, disappointments, and falls.
Concentration: Technology, Entrepreneurship
WE:Operations (Telecommunications)
5
Kudos
Add Kudos
Bookmarks
Bookmark this Post
General Discussion
User avatar
jeeteshsingh
Joined: 22 Dec 2009
Last visit: 03 Aug 2023
Posts: 178
Own Kudos:
Given Kudos: 48
Posts: 178
Kudos: 994
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Bunuel
jeeteshsingh
Need Algebric solution - step by step:

If a, b, and C are greater than 0 and a is twice as large as b percent of c, then in terms of b & c, what is a percent of c?

(A) \(\frac{2bc}{100}\)

(B) \(\frac{2bc^2}{1000}\)

(C) \(\frac{bc^2}{5000}\)

(D) \(\frac{b^2c}{5000}\)

(E) \(\frac{5000b}{c^2}\)



\(a\) is twice as large as \(b\) percent of \(c\) --> \(a=2c\frac{b}{100}\)

What is \(a\) percent of \(c\)? --> \(c\frac{a}{100}=?\)

Multiply first equation by \(\frac{c}{100}\) --> \(a\frac{c}{100}=\frac{c}{100}2c\frac{b}{100}\) --> \(c\frac{a}{100}=\frac{c^2b}{5000}\)

Answer: C.

Thanks Bunuel.. I misunderstood the question's last part as What percent is a of c.... and hence I was getting 2b as the answer! :(
User avatar
fameatop
Joined: 24 Aug 2009
Last visit: 09 Jun 2017
Posts: 383
Own Kudos:
Given Kudos: 275
Concentration: Finance
Schools:Harvard, Columbia, Stern, Booth, LSB,
Posts: 383
Kudos: 2,430
Kudos
Add Kudos
Bookmarks
Bookmark this Post
As per me the best way to solve this question is to Pick Smart Numbers & then verify the options
User avatar
rajathpanta
Joined: 13 Feb 2010
Last visit: 24 Apr 2015
Posts: 144
Own Kudos:
Given Kudos: 282
Status:Prevent and prepare. Not repent and repair!!
Location: India
Concentration: Technology, General Management
GPA: 3.75
WE:Sales (Telecommunications)
Kudos
Add Kudos
Bookmarks
Bookmark this Post
jeeteshsingh
Need Algebric solution - step by step:

If a, b, and C are greater than 0 and a is twice as large as b percent of c, then in terms of b & c, what is a percent of c?

(A) \(\frac{2bc}{100}\)

(B) \(\frac{2bc^2}{1000}\)

(C) \(\frac{bc^2}{5000}\)

(D) \(\frac{b^2c}{5000}\)

(E) \(\frac{5000b}{c^2}\)


It is already given that a=2[bc/100] (Twice as large as b%c)...... Let this be equation 1
We need a%c in terms of b. So Multiply equation 1 with c/100 we get- ac/100=2bc^2/10000
Therefore Ans is C
User avatar
mbaiseasy
Joined: 13 Aug 2012
Last visit: 29 Dec 2013
Posts: 323
Own Kudos:
Given Kudos: 11
Concentration: Marketing, Finance
GPA: 3.23
Posts: 323
Kudos: 1,977
Kudos
Add Kudos
Bookmarks
Bookmark this Post
b percent of c : \(\frac{bc}{100}\)
a is twice as large as b percent of c: a = \(\frac{2bc}{100}=\frac{bc}{50}\)

What is a percent of c?

a percent of c: \(\frac{ac}{100} = \frac{bc}{50}*\frac{c}{100}=\frac{bc^2}{5000}\)

Answer: C
User avatar
saurabhgoel
Joined: 31 May 2010
Last visit: 04 Dec 2014
Posts: 43
Own Kudos:
Given Kudos: 25
Products:
Posts: 43
Kudos: 223
Kudos
Add Kudos
Bookmarks
Bookmark this Post
lets say a = 10 and b=5
so as per given info. 10 = 2*5*c/100
Which will give c = 100

substitute the value of 'b' and 'c' in in answer choices to get value 'a'.
User avatar
Kinshook
User avatar
Major Poster
Joined: 03 Jun 2019
Last visit: 19 June 2025
Posts: 5,613
Own Kudos:
5,100
 [1]
Given Kudos: 161
Location: India
GMAT 1: 690 Q50 V34
WE:Engineering (Transportation)
Products:
GMAT 1: 690 Q50 V34
Posts: 5,613
Kudos: 5,100
 [1]
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
jeeteshsingh
Need Algebric solution - step by step:

If a, b, and C are greater than 0 and a is twice as large as b percent of c, then in terms of b & c, what is a percent of c?

(A) \(\frac{2bc}{100}\)

(B) \(\frac{2bc^2}{1000}\)

(C) \(\frac{bc^2}{5000}\)

(D) \(\frac{b^2c}{5000}\)

(E) \(\frac{5000b}{c^2}\)

Given:
1. a, b, and C are greater than 0
2. a is twice as large as b percent of c

Asked: In terms of b & c, what is a percent of c?

a = 2 b% c = 2bc/100 = bc/50
a% c = ac/100 = (bc/50)*c/100 = bc^2/5000

IMO C
User avatar
Archit3110
User avatar
Major Poster
Joined: 18 Aug 2017
Last visit: 18 Jun 2025
Posts: 8,238
Own Kudos:
Given Kudos: 243
Status:You learn more from failure than from success.
Location: India
Concentration: Sustainability, Marketing
GMAT Focus 1: 545 Q79 V79 DI73
GPA: 4
WE:Marketing (Energy)
GMAT Focus 1: 545 Q79 V79 DI73
Posts: 8,238
Kudos: 4,742
Kudos
Add Kudos
Bookmarks
Bookmark this Post
let c = 100 ; b = 10 so a = 20
a percent of c is 20
plug in values in given options
optioN C matches \(\frac{bc^2}{5000}\)
:)


jeeteshsingh
Need Algebric solution - step by step:

If a, b, and C are greater than 0 and a is twice as large as b percent of c, then in terms of b & c, what is a percent of c?

(A) \(\frac{2bc}{100}\)

(B) \(\frac{2bc^2}{1000}\)

(C) \(\frac{bc^2}{5000}\)

(D) \(\frac{b^2c}{5000}\)

(E) \(\frac{5000b}{c^2}\)
User avatar
hiranmay
Joined: 12 Dec 2015
Last visit: 22 Jun 2024
Posts: 460
Own Kudos:
Given Kudos: 84
Posts: 460
Kudos: 556
Kudos
Add Kudos
Bookmarks
Bookmark this Post
If a, b, and c are greater than 0 and a is twice as large as b percent of c, then in terms of b & c, what is a percent of c?

(A) \(\frac{2bc}{100}\)

(B) \(\frac{2bc^2}{1000}\)

(C) \(\frac{bc^2}{5000}\) --> correct: a is twice as large as b% of c i.e. a= 2*b%*c=\(2*\frac{b}{100}*c=\frac{2bc}{100}\), now a% of c =\(\frac{a}{100}*c=a*\frac{c}{100}=\frac{2bc}{100}*\frac{c}{100} =\frac{bc}{50}*\frac{c}{100}= \frac{bc^2}{5000}\)

(D) \(\frac{b^2c}{5000}\)

(E) \(\frac{5000b}{c^2}\)
User avatar
bumpbot
User avatar
Non-Human User
Joined: 09 Sep 2013
Last visit: 04 Jan 2021
Posts: 37,229
Own Kudos:
Posts: 37,229
Kudos: 1,001
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
102138 posts
PS Forum Moderator
648 posts