Last visit was: 14 Dec 2024, 03:53 It is currently 14 Dec 2024, 03:53
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
Praetorian
Joined: 15 Aug 2003
Last visit: 27 Dec 2017
Posts: 2,876
Own Kudos:
Given Kudos: 781
Posts: 2,876
Kudos: 1,669
Kudos
Add Kudos
Bookmarks
Bookmark this Post
User avatar
kpadma
Joined: 03 Jul 2003
Last visit: 20 Oct 2004
Posts: 380
Own Kudos:
Posts: 380
Kudos: 501
Kudos
Add Kudos
Bookmarks
Bookmark this Post
User avatar
mantha
Joined: 11 Oct 2003
Last visit: 22 Mar 2007
Posts: 57
Own Kudos:
Location: USA
Posts: 57
Kudos: 3
Kudos
Add Kudos
Bookmarks
Bookmark this Post
User avatar
mdfrahim
Joined: 28 Jan 2004
Last visit: 13 May 2015
Posts: 94
Own Kudos:
Given Kudos: 4
Location: India
Posts: 94
Kudos: 55
Kudos
Add Kudos
Bookmarks
Bookmark this Post
I will go for A (only statement 1 can be used to answer).
Time taken 30 seconds.

Sol. Three integers be X,Y,Z and largest be Z.
sqrt(XYZ) = Z ,replace Z by 12
sqrt(XY*12) = 12
or sqrt(XY) = sqrt(12)
or XY = 12
User avatar
BG
Joined: 13 Nov 2003
Last visit: 29 Sep 2020
Posts: 353
Own Kudos:
Location: BULGARIA
Concentration: INSURANCE, RISK MANAGEMENT
 Q49  V38
Posts: 353
Kudos: 192
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Agree with mantha and mdfrahim, think that the answer is A)
Time: 2,5 min.
User avatar
anandnk
Joined: 30 Oct 2003
Last visit: 30 Nov 2013
Posts: 897
Own Kudos:
Location: NewJersey USA
Posts: 897
Kudos: 398
Kudos
Add Kudos
Bookmarks
Bookmark this Post
a) sqrt( a * b * 12 ) = 12
so a * b = 12
Sufficient
b) a+b+c = 20
Only number that satisfies this and a * b = c is c = 12
Sufficient
< 2 minutes
User avatar
Praetorian
Joined: 15 Aug 2003
Last visit: 27 Dec 2017
Posts: 2,876
Own Kudos:
Given Kudos: 781
Posts: 2,876
Kudos: 1,669
Kudos
Add Kudos
Bookmarks
Bookmark this Post
praetorian123
Rules

1. Time yourself
2. Work your solution on a seperate sheet of paper
3. write your solution here , and your time please.

If the square root of the product of three distinct positive
integers is equal to the largest of the three numbers, what is the
product of the two smaller numbers?

(1) The largest number is 12.
(2) The average (arithmetic mean) of the three numbers is 20/3



D is correct

good work anand :)
User avatar
Makky07
Joined: 23 Sep 2003
Last visit: 03 Dec 2004
Posts: 192
Own Kudos:
Location: US
Posts: 192
Kudos: 23
Kudos
Add Kudos
Bookmarks
Bookmark this Post
I agree with Anandnk and Kpadma.

D is the answer.

The only distinct positive integers that satisfy the requirement that their sum = 20, and that the largest integer = the product of the other 2 integers are 6, 2 and 12.

If you try other combinations, you'll find that they don't sum to 20. Example: a=3; b=4 ; ab = c = 12 but 3 + 4 + 12 20. Same with 8, 2 and 16.



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!
Moderator:
Senior Moderator - Masters Forum
3116 posts