Algebra Question

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Lance123: Junior | Next Rank: 30 Posts; Posts: 16; Joined: Fri Nov 13, 2009 7:50 am

by Lance123 » Fri Nov 13, 2009 7:56 am

Hey guys, I'm new here, however I've been browsing for some time. Very helpful site.

I was wondering if you guys could help me out with understanding a particular Algebra type DS question.

This is my understanding thus far:

If you were to solve the statement 1, you would automatically receive a RANGE of values, hence 1 alone is not sufficient to answer the question,

If you then isolated statement 2, you will have 2 values for X and not the desired 1 value required.

I am puzzled as to how the 2 combined will give you a clear answer.

Thanks in Advance

Source: Beat The GMAT — Data Sufficiency | Fri Nov 13, 2009 7:56 am

xcusemeplz2009: Master | Next Rank: 500 Posts; Posts: 399; Joined: Wed Apr 15, 2009 3:48 am; Location: india; Thanked: 39 times

by xcusemeplz2009 » Fri Nov 13, 2009 9:09 am

from 1st x can be either 2 or 3 not suff as we need only one value
from 2nd x can be either 3 or 4 same

from bth we come to knw that only one sol that is x=3 is possible

hence bth

It does not matter how many times you get knocked down , but how many times you get up

Lance123: Junior | Next Rank: 30 Posts; Posts: 16; Joined: Fri Nov 13, 2009 7:50 am

by Lance123 » Fri Nov 13, 2009 10:21 am

ahhhh Thank you,

To solve Statement 1 i completely overlooked the simplistic method of simply plugging in values, I.E. 2 and 3.

heshamelaziry: Legendary Member; Posts: 869; Joined: Wed Aug 26, 2009 3:49 pmFollowed by: 3 members; Location: California; Thanked: 13 times

by heshamelaziry » Fri Nov 13, 2009 10:37 am

WHICH TEST PERP EXAM IS THIS ? WHAT IS THE SOURCE ?

Lance123: Junior | Next Rank: 30 Posts; Posts: 16; Joined: Fri Nov 13, 2009 7:50 am

by Lance123 » Fri Nov 13, 2009 10:39 am

I got the Tests from this source

https://learnhub.com/users/Sureshbala/tests

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