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# If x, y, and n are positive integers, is (x/y)^n greater

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Intern
Joined: 21 Jul 2009
Posts: 11

Kudos [?]: 24 [0], given: 1

If x, y, and n are positive integers, is (x/y)^n greater [#permalink]

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17 Nov 2009, 08:17
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50% (00:05) correct 50% (01:55) wrong based on 4 sessions

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If x, y, and n are positive integers, is (x/y)^n greater than 1,000 ?
(1) x = y^3 and n > y.
(2) x > 5y and n > x.

Kudos [?]: 24 [0], given: 1

Senior Manager
Joined: 30 Aug 2009
Posts: 283

Kudos [?]: 188 [0], given: 5

Location: India
Concentration: General Management
Re: is (x/y)^n greater than 1,000 ? [#permalink]

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17 Nov 2009, 08:35
SMAbbas wrote:
If x, y, and n are positive integers, is (x/y)^n greater than 1,000 ?
(1) x = y^3 and n > y.
(2) x > 5y and n > x.

B
1. (x/y)^n = (y^3/y)^n= y^2n. we can get values both greater or less than 1000 hence insuff
2. x>5y so if y =1 then least value of x is 6 and n>x>6. ie minimum value we will get is 6^7. hence suff

Kudos [?]: 188 [0], given: 5

VP
Joined: 05 Mar 2008
Posts: 1468

Kudos [?]: 299 [0], given: 31

Re: is (x/y)^n greater than 1,000 ? [#permalink]

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17 Nov 2009, 08:42
kp1811 wrote:
SMAbbas wrote:
If x, y, and n are positive integers, is (x/y)^n greater than 1,000 ?
(1) x = y^3 and n > y.
(2) x > 5y and n > x.

B
1. (x/y)^n = (y^3/y)^n= y^2n. we can get values both greater or less than 1000 hence insuff
2. x>5y so if y =1 then least value of x is 6 and n>x>6. ie minimum value we will get is 6^7. hence suff

Also getting B

1) let's assume y = 1 then x = 1 and doesn't matter what n is it will be less than 1000
y = 2 x = 8 n can be anything that makes it >1000
insufficient

Kudos [?]: 299 [0], given: 31

Manager
Joined: 29 Oct 2009
Posts: 211

Kudos [?]: 1619 [0], given: 18

GMAT 1: 750 Q50 V42
Re: is (x/y)^n greater than 1,000 ? [#permalink]

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17 Nov 2009, 09:01
Getting B as well. Similar reasoning as above. Whats the OA?
_________________

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http://gmatclub.com/forum/compilation-of-tips-and-tricks-to-deal-with-remainders-86714.html#p651942

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Kudos [?]: 1619 [0], given: 18

Intern
Joined: 21 Jul 2009
Posts: 11

Kudos [?]: 24 [0], given: 1

Re: is (x/y)^n greater than 1,000 ? [#permalink]

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17 Nov 2009, 11:28
OA is B

Thanks a lot !

Kudos [?]: 24 [0], given: 1

Re: is (x/y)^n greater than 1,000 ?   [#permalink] 17 Nov 2009, 11:28
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# If x, y, and n are positive integers, is (x/y)^n greater

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