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GMATPrep 2

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lnaik
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GMATPrep 2 [#permalink] New post   04 Oct 2007, 05:29
Please solve this.



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Fig
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Re: GMATPrep 2 [#permalink] New post   04 Oct 2007, 06:19
(E) for me :)

We have:
o 450 < x < 551
o 350 < y < 451

=> 800 < x+y < 1002

So, we could have:
- If 800 < x+y < 851 : 800
- If 850 < x+y < 951 : 900
- If 950 < x+y < 1002 : 1000

All depend on how much we could narrow down the range of x and/or y.

Stat1
x < 500

Implies that:
o 450 < x < 500
o 350 < y < 451

=> 800 < x+y < 951

We could have 800 or 900.

INSUFF.

Stat2
y < 400

Implies that:
o 450 < x < 551
o 350 < y < 400

=> 800 < x+y < 951

We could have 800 or 900.

INSUFF.

Both 1 and 2
o 450 < x < 500
o 350 < y < 400

=> 800 < x+y < 900

- If 800 < x+y < 851 : 800
- If 850 < x+y < 900 : 900

INSUFF.
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b14kumar
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Re: GMATPrep 2 [#permalink] New post   04 Oct 2007, 07:19
Fig wrote:
(E) for me :)

We have:
o 450 < x < 551
o 350 < y <451> 800 < x+y < 1002

So, we could have:
- If 800 < x+y < 851 : 800
- If 850 < x+y < 951 : 900
- If 950 < x+y < 1002 : 1000

All depend on how much we could narrow down the range of x and/or y.

Stat1
x < 500

Implies that:
o 450 < x < 500
o 350 < y <451> 800 < x+y < 951

We could have 800 or 900.

INSUFF.

Stat2
y < 400

Implies that:
o 450 < x < 551
o 350 < y <400> 800 < x+y < 951

We could have 800 or 900.

INSUFF.

Both 1 and 2
o 450 < x < 500
o 350 < y <400> 800 < x+y < 900

- If 800 < x+y < 851 : 800
- If 850 < x+y < 900 : 900

INSUFF.


Fig,

Could you please elaborate how you got:

We have:
o 450 < x < 551
o 350 < y < 451

- Brajesh
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el1981
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Re: GMATPrep 2 [#permalink] New post   04 Oct 2007, 07:29
I got E as well.
I think it's not necessary to do all a long calculation.
It's obvious that st.1 insuf. b/c there is nothing about y???
st.2 insuf b/c there is nothing about x???
even together statements don't give enough information. there are many x any y, sum of which would be multiple of 100.
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Fig
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Re: GMATPrep 2 [#permalink] New post   04 Oct 2007, 08:37
b14kumar wrote:
Fig wrote:
(E) for me :)

We have:
o 450 800 800 800 800 < x+y < 900

- If 800 < x+y < 851 : 800
- If 850 < x+y < 900 : 900

INSUFF.


Fig,

Could you please elaborate how you got:

We have:
o 450 < x < 551
o 350 < y < 451

- Brajesh


I have searched the limits of value that make x and y closed to 500 and 400.

It's as when we say:
o 1,6 is closed to 2
or
o 1,49 is closed to 1

:)



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!
GMAT Club Bot
gmatclubot
Re: GMATPrep 2 [#permalink]
04 Oct 2007, 08:37
Moderator:
yashikaaggarwal
Senior Moderator - Masters Forum
3137 posts

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