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If y < x, is x^2 < y^2 ? (1) y > 0 (2) x > 0

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If y < x, is x^2 < y^2 ? (1) y > 0 (2) x > 0  [#permalink]

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New post 01 Nov 2018, 03:30
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A
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C
D
E

Difficulty:

  45% (medium)

Question Stats:

63% (01:27) correct 37% (01:25) wrong based on 128 sessions

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Re: If y < x, is x^2 < y^2 ? (1) y > 0 (2) x > 0  [#permalink]

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New post 01 Nov 2018, 03:50
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This has to be A...can u recheck the OE..?

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Re: If y < x, is x^2 < y^2 ? (1) y > 0 (2) x > 0  [#permalink]

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Re: If y < x, is x^2 < y^2 ? (1) y > 0 (2) x > 0  [#permalink]

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New post 01 Nov 2018, 05:02
1
carcass wrote:
If \(y < x\), is \(x^2 < y^2\)?

(1) y > 0
(2) x > 0


if y > 0

then x > y > 0

then it is not true that x^2 < y^2 sufficient.

x > 0 then we don't know about y

if x = 2 and y = -3

then it is not true.

if x = 2 and y = -1 then is it true.

Not sufficient.

Answer choice A
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Re: If y < x, is x^2 < y^2 ? (1) y > 0 (2) x > 0   [#permalink] 01 Nov 2018, 05:02
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