NEW HERE? LEARN MORE
closeclose
Last visit was: 25 Apr 2024, 16:09 It is currently 25 Apr 2024, 16:09
Decision Tracker
My Rewards
New posts
New comers' posts

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.
Go to My Error Log Learn more
Close
Request Expert Reply
Confirm Cancel

If 2a = 4b = 8c = 10, then 64abc =

SORT BY:
Date
Kudos
Tags:
Find Similar Topics 
Show Tags
Hide Tags
User avatar
L
Bunuel
Math Expert
Joined: 02 Sep 2009
Posts: 92915
Own Kudos [?]: 619022 [1]
Given Kudos: 81595
Send PM
CAT Tests Forum Quiz Mode
If 2a = 4b = 8c = 10, then 64abc = [#permalink] New post   31 May 2018, 12:10
1
Bookmarks
Expert Reply
00:00
A
B
C
D
E

Difficulty:

5% (low)

Question Stats:

89% (01:03) correct 11% (01:32) wrong based on 81 sessions
Hide Show timer Statistics
If \(2a = 4b = 8c = 10\), then \(64abc =\)

(A) 64,000
(B) 16,000
(C) 8,000
(D) 4,000
(E) 1,000
ShowHide Answer
Official Answer
E
User avatar
G
D3N0
Senior Manager
Senior Manager
Joined: 21 Jan 2015
Posts: 423
Own Kudos [?]: 356 [0]
Given Kudos: 82
Location: India
Concentration: Strategy, Marketing
Schools: Smeal'21 (WD) Arizona State'21 (A$) Simon '21 (WD)
GMAT 1: 620 Q48 V28
GMAT 2: 690 Q49 V35
WE:Sales (Consumer Products)
Send PM
GMAT ToolKit User Reviews Badge
Re: If 2a = 4b = 8c = 10, then 64abc = [#permalink] New post   31 May 2018, 15:54
Bunuel wrote:
If \(2a = 4b = 8c = 10\), then \(64abc =\)

(A) 64,000
(B) 16,000
(C) 8,000
(D) 4,000
(E) 1,000


Ans: E

2a=10 ; a=5, 4b= 10 ; b= 5/2, and 8c= 10 ; c=5/4
so 64abc= 1000
User avatar
B
alphastallion
Intern
Intern
Joined: 16 May 2017
Posts: 43
Own Kudos [?]: 15 [0]
Given Kudos: 66
Location: India
Send PM
Re: If 2a = 4b = 8c = 10, then 64abc = [#permalink] New post   31 May 2018, 16:01
2a=10 ; a=5 similarly b=5/2 ; c=5/4
=64abc
=64X5X5/2X5/4
=1000 (ans E)
User avatar
G
nkmungila
Manager
Manager
Joined: 07 Jun 2017
Posts: 116
Own Kudos [?]: 673 [0]
Given Kudos: 60
Location: India
Concentration: Technology, General Management
GMAT 1: 660 Q46 V38
GPA: 3.6
WE:Information Technology (Computer Software)
Send PM
GMAT ToolKit User Reviews Badge
If 2a = 4b = 8c = 10, then 64abc = [#permalink] New post   01 Jun 2018, 03:51
2a * 4b * 8C = 64abc

so 10*10*10 = 1000 Answer E
User avatar
P
JeffTargetTestPrep
Target Test Prep Representative
Joined: 04 Mar 2011
Status:Head GMAT Instructor
Affiliations: Target Test Prep
Posts: 3043
Own Kudos [?]: 6275 [0]
Given Kudos: 1646
Send PM
Re: If 2a = 4b = 8c = 10, then 64abc = [#permalink] New post   03 Jun 2018, 18:24
Expert Reply
Bunuel wrote:
If \(2a = 4b = 8c = 10\), then \(64abc =\)

(A) 64,000
(B) 16,000
(C) 8,000
(D) 4,000
(E) 1,000


We see that 64abc = (2a)(4b)(8c) = (10)(10)(10) = 1,000

Answer: E
User avatar
D
PKN
Director
Director
Joined: 01 Oct 2017
Status:Learning stage
Posts: 827
Own Kudos [?]: 1298 [0]
Given Kudos: 41
WE:Supply Chain Management (Energy and Utilities)
Send PM
Re: If 2a = 4b = 8c = 10, then 64abc = [#permalink] New post   04 Jun 2018, 02:52
Bunuel wrote:
If \(2a = 4b = 8c = 10\), then \(64abc =\)

(A) 64,000
(B) 16,000
(C) 8,000
(D) 4,000
(E) 1,000



We can write 64abc=2a*4b*8c

Now substituting the value of 2a, 4b and 8c from the given data, we have

64abc=10*10*10=1000

Ans. E
User avatar
D
KSBGC
VP
VP
Joined: 31 Oct 2013
Posts: 1260
Own Kudos [?]: 1155 [0]
Given Kudos: 635
Concentration: Accounting, Finance
GPA: 3.68
WE:Analyst (Accounting)
Send PM
Re: If 2a = 4b = 8c = 10, then 64abc = [#permalink] New post   07 Jun 2018, 14:47
Bunuel wrote:
If \(2a = 4b = 8c = 10\), then \(64abc =\)

(A) 64,000
(B) 16,000
(C) 8,000
(D) 4,000
(E) 1,000


It's given that 2a=4b=8c=10. It means that all these terms have equal value which is 10.

we are asked to find out the value of 64abc = 32*2*abc=8*4*2*abc= 2a*4b*8c=10*10*10= 1000

Thus the best answer is E.
avatar
B
rakeshmishra5690
Intern
Intern
Joined: 18 May 2016
Posts: 28
Own Kudos [?]: 26 [0]
Given Kudos: 5
Send PM
Re: If 2a = 4b = 8c = 10, then 64abc = [#permalink] New post   07 Jun 2018, 17:46
64abc = 2a*4b*8c
10*10*10 = 1000

Ans E
GMAT Club Bot
gmatclubot
Re: If 2a = 4b = 8c = 10, then 64abc = [#permalink]
07 Jun 2018, 17:46
Moderators:
Bunuel
Math Expert
92915 posts
yashikaaggarwal
Senior Moderator - Masters Forum
3137 posts

Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne
Main navigation
GMAT Resources
Partners
MBA Resources
www.gmac.com|www.mba.com | | GMAT Club Rules | Terms and Conditions