set of numbers

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ruplun: Master | Next Rank: 500 Posts; Posts: 232; Joined: Fri Jun 18, 2010 7:09 amFollowed by: 2 members; Thanked: 1 times

by ruplun » Sun Jun 26, 2011 2:21 am

If S is the set of 4 numbers w,x,y and z, is the range of the numbers in S greater than 2?

(1) w-z>2
(2) z is the least number in S

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Source: Beat The GMAT — Data Sufficiency | Sun Jun 26, 2011 2:21 am

Frankenstein: Legendary Member; Posts: 1448; Joined: Tue May 17, 2011 9:55 amFollowed by: 53 members; Location: India; Thanked: 375 times

by Frankenstein » Sun Jun 26, 2011 3:10 am

Hi,
From(1): w-z > 2
Range is greater than 2 irrespective of values of x and y
Sufficient

From(2): z is least.
No, info about other numbers
Not sufficient

Hence, A

Cheers!

Things are not what they appear to be... nor are they otherwise

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Sanjay2706: Master | Next Rank: 500 Posts; Posts: 116; Joined: Tue May 31, 2011 7:52 pmFollowed by: 2 members; Location: Bangalore, India; Thanked: 2 times

by Sanjay2706 » Sun Jun 26, 2011 10:33 pm

Yes, for a second, I thought C was right.
However, looking closely at the question. if w-z> 2 Range will also be greater than 2.
So A is the right choice.

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