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is 1/8 < n <1/6 1) n + 1/7>2/7 2) n+1/10<2/5

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Joined: 28 Dec 2004
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is 1/8 < n <1/6 1) n + 1/7>2/7 2) n+1/10<2/5 [#permalink] New post 08 Jan 2005, 17:00
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is 1/8 < n <1/6

1) n + 1/7>2/7
2) n+1/10<2/5

This is really easy but somehow, I screwed this one up on my CAT test...aggh...

will post OA later.
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 [#permalink] New post 08 Jan 2005, 23:36
E it is
1/8 < n <1/6

1) n + 1/7>2/7

just tells you n < 1/7 hence not sufficient

2) n+1/10<2/5
just tells you n > 3/10 hence not sufficient

1 & 2 together tells you 3/10 < n < 1/7 is insufficient too
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Praveen

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Kudos [?]: 164 [0], given: 2

 [#permalink] New post 10 Jan 2005, 08:23
praveen if N > is 3/10 doesnt that answer the question that it cannot be between 1/8 and 1/6?

praveen_rao7 wrote:
E it is
1/8 < n <1/6

1) n + 1/7>2/7

just tells you n < 1/7 hence not sufficient

2) n+1/10<2/5
just tells you n > 3/10 hence not sufficient

1 & 2 together tells you 3/10 < n < 1/7 is insufficient too
  [#permalink] 10 Jan 2005, 08:23
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