BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course

Redeem

GMAT Prep ques

This topic has expert replies
Post new topic Post Reply
Previous Topic Next Topic
User avatar
Master | Next Rank: 500 Posts
Posts: 216
Joined: Wed Jul 23, 2008 2:35 am
Location: Pune, India
Thanked: 5 times
GMAT Score:700

GMAT Prep ques

by ayushiiitm » Fri Jun 25, 2010 5:18 am
HI all,

I think the answer should be C

coz from 1st stem triangle could be + or *

from second stem triangle could be * or /

OA is different

Will post later
Attachments
gmatprepunsolved3.jpg
Success is a journey.....enjoy every moment of it
Top
Source: — Data Sufficiency |
User avatar
GMAT Instructor
Posts: 147
Joined: Tue Aug 25, 2009 7:57 pm
Location: New York City
Thanked: 76 times
Followed by:17 members
GMAT Score:770

by Rich@VeritasPrep » Fri Jun 25, 2010 5:51 am
Hey ayushiiitm,

Be careful, because you always want to keep in mind EXACTLY what the question asks. The question is not asking what operation the triangle symbol represents. It's asking whether or not the equation in the prompt is true.

The prompt basically boils down to: "Does the triangle symbol indicate addition or multiplication?" Because either of those two will make the equation true.

Statement (1), as you pointed out, tells us that the symbol is either addition or multiplication. Either one of those will make the equation true. So (1) is sufficient.

Statement (2), on the other hand, tells us that the symbol is either multiplication or division. If it were multiplication, the equation would be true. If it were division, the equation would not be true. Insufficient.

Answer: A
Last edited by Rich@VeritasPrep on Fri Jun 25, 2010 5:53 am, edited 1 time in total.
Rich Zwelling
GMAT Instructor, Veritas Prep
Top
User avatar
GMAT Instructor
Posts: 1052
Joined: Fri May 21, 2010 1:30 am
Thanked: 335 times
Followed by:98 members

by Patrick_GMATFix » Fri Jun 25, 2010 5:52 am
For those who cannot see attachments, you can see the question here.


Hi ayushiiitm,

The OA is correct. C is not the answer. Accurate rephrasing is key. Essentially, the question is asking wether the "T" operation has commutative property. Only addition and multiplication would result the equation presented.

Rephrase: Is the operation either addition or multiplication?

The first statement is sufficient because of the 4 arithmetic operations, only addition or multiplication agree with the statement. So whether we're dealing with addition or multiplication, the answer to the question will be 'YES'.

Statement (2) is not sufficient because both multiplication and division agree with the statement.

The correct answer is A. A much more detailed explanation as well as video solution is available at GMATPrep Question 1397. To study advanced functions questions, use the Drill Generator to generate timed drills and set topics="Functions & Sequences" and Difficulty="600-700"

Good Luck!
-Patrick
Last edited by Patrick_GMATFix on Fri Jun 25, 2010 11:30 am, edited 1 time in total.
  • Ask me about tutoring.
Top
User avatar
Master | Next Rank: 500 Posts
Posts: 216
Joined: Wed Jul 23, 2008 2:35 am
Location: Pune, India
Thanked: 5 times
GMAT Score:700

by ayushiiitm » Fri Jun 25, 2010 6:21 am
Woohoho!!!!

So simple and yet so tricky

I am impressed by GMATPrep questions.......

Thanks Raz and Patrick for timely and succinct reply
Success is a journey.....enjoy every moment of it
Top
User avatar
GMAT Instructor
Posts: 1052
Joined: Fri May 21, 2010 1:30 am
Thanked: 335 times
Followed by:98 members

by Patrick_GMATFix » Fri Jun 25, 2010 7:19 am
ayushiiitm wrote: I am impressed by GMATPrep questions.......
I know. There are some people who spend all day trying to figure out how to 'get' us. You're welcome Ayushiiitm :-)

-Patrick
  • Ask me about tutoring.
Top
User avatar
Legendary Member
Posts: 758
Joined: Sat Aug 29, 2009 9:32 pm
Location: Bangalore,India
Thanked: 67 times
Followed by:2 members

by sumanr84 » Fri Jun 25, 2010 7:52 am
ayushiiitm - Good Q I must say. BTW, how is your final count down going on ? This Sunday is your test right ?
I am on a break !!
Top
User avatar
Master | Next Rank: 500 Posts
Posts: 216
Joined: Wed Jul 23, 2008 2:35 am
Location: Pune, India
Thanked: 5 times
GMAT Score:700

by ayushiiitm » Fri Jun 25, 2010 9:55 am
@sumanr

Dude....I postponed it :(

Had time on my side....so i thought ill put in some more efforts

next date 15Aug 10
Success is a journey.....enjoy every moment of it
Top
User avatar
Legendary Member
Posts: 934
Joined: Tue Nov 09, 2010 5:16 am
Location: AAMCHI MUMBAI LOCAL
Thanked: 63 times
Followed by:14 members

by [email protected] » Fri Mar 16, 2012 11:09 pm
Hey superb question again... Today is a good day at BTG... Mind you guyzzz all these questions are really very good and tricky as wellll,...



Statement 2 avoid many silly mistakes...
IT IS TIME TO BEAT THE GMAT

LEARNING, APPLICATION AND TIMING IS THE FACT OF GMAT AND LIFE AS WELL... KEEP PLAYING!!!

Whenever you feel that my post really helped you to learn something new, please press on the 'THANK' button.
Top
Post new topic Post Reply
• Page 1 of 1