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X, Y, Z are all real numbers. Is X > 15? (1) Y < 17, and X < Y. (2)

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X, Y, Z are all real numbers. Is X > 15? (1) Y < 17, and X < Y. (2)  [#permalink]

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New post 14 Jan 2019, 22:01
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Question Stats:

59% (01:02) correct 41% (01:14) wrong based on 40 sessions

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X, Y, Z are all real numbers. Is X > 15?

(1) Y < 17, and X < Y.

(2) Z > 14, and X > Z.
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Joined: 02 Aug 2009
Posts: 7956
Re: X, Y, Z are all real numbers. Is X > 15? (1) Y < 17, and X < Y. (2)  [#permalink]

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New post 14 Jan 2019, 22:31
X, Y, Z are all real numbers. Is X > 15?

(1) Y < 17, and X < Y.
So X<Y<17..
X can be 13..NO
X can be 16..yes

(2) Z > 14, and X > Z.
X>Z>14..
X can be 15..NO
X can be 16..yes

Combined
14<X<17...
X can be 15 ...NO
X can be 15.5 or 16..YES

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Re: X, Y, Z are all real numbers. Is X > 15? (1) Y < 17, and X < Y. (2)   [#permalink] 14 Jan 2019, 22:31
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X, Y, Z are all real numbers. Is X > 15? (1) Y < 17, and X < Y. (2)

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