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Source: GMATPrep For the students in Class A, the range of

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Source: GMATPrep For the students in Class A, the range of [#permalink]  21 Sep 2007, 20:27
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Source: GMATPrep

For the students in Class A, the range of their height is r cm and the greatest height is g cm. For the students in Class B, the range of their heights is s cm and the greatest height is h cm. Is the least height of the students in Class A greater than the least height of the students in Class B?

(1) r <s> h
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Re: DS: Class Height [#permalink]  21 Sep 2007, 20:35
Hang Tuah wrote:
Source: GMATPrep

For the students in Class A, the range of their height is r cm and the greatest height is g cm. For the students in Class B, the range of their heights is s cm and the greatest height is h cm. Is the least height of the students in Class A greater than the least height of the students in Class B?

(1) r <s> h

should repost the question
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Re: DS: Class Height [#permalink]  21 Sep 2007, 23:03
Hang Tuah wrote:
Source: GMATPrep

For the students in Class A, the range of their height is r cm and the greatest height is g cm. For the students in Class B, the range of their heights is s cm and the greatest height is h cm. Is the least height of the students in Class A greater than the least height of the students in Class B?

(1) r <s> h

Need to repost.

So far though: let x equal the smallest in A and y equal teh smallest in B.

Thus A's range is: g-x=r
B's range is: h-y=s

So the real question here is, is x>y?

So far i don't think S1 is suff.
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Sorry for the snail reply. My internet connection is a bit patchy now.
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Range - Min - Max

Statement I :

Say R for A = 10
Max - Min = 10

Say R for B = 12

Max - Min = 12

Insufficient

Statement II :

Say Max for A = 15

15 - Min = Range

Say Max for B = 14

14 - Min = Range

Insufficient

1 + 2 :

A : 15 - 10 = 5 (Min
Min = 25

B : 14 - 12 = 2(Min

(c) - can't be this easy?
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Re: DS: Class Height [#permalink]  03 Apr 2008, 08:02
guys, has anyone an answer for this question?
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Re: DS: Class Height [#permalink]  03 Apr 2008, 09:12

Last edited by young_gun on 03 Apr 2008, 11:40, edited 1 time in total.
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Re: DS: Class Height [#permalink]  03 Apr 2008, 10:56
class A: g - r = minA
class B: h - s = minB

rephrase: Is g - r > h - s?

1) r < s Insuff. since we don't know g and h
2) g > h Insuff. since we don't know r and s

Both taken together are sufficient since the number on the left side will always be bigger than the number on the right side (because it's first component is bigger and the second one, which gets subtracted, smaller).

I think it's C.
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Re: DS: Class Height   [#permalink] 03 Apr 2008, 10:56
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