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If x > 2 and y = x/(x - 2), which of the following is equal to 1/y ?

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If x > 2 and y = x/(x - 2), which of the following is equal to 1/y ? [#permalink]

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New post 15 Mar 2018, 00:22
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A
B
C
D
E

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  25% (medium)

Question Stats:

78% (00:37) correct 22% (01:46) wrong based on 58 sessions

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Re: If x > 2 and y = x/(x - 2), which of the following is equal to 1/y ? [#permalink]

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New post 15 Mar 2018, 00:28
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1/y=(x-2)/x
=1-2/x
B
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Re: If x > 2 and y = x/(x - 2), which of the following is equal to 1/y ? [#permalink]

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New post 19 Mar 2018, 06:40
Bunuel wrote:
If x > 2 and y = x/(x - 2), which of the following is equal to 1/y ?

A. 2 - 1/x

B. 1 - 2/x

C. 2/(x - 1)

D. -2/(x - 1)

E. 2x/(x - 1)


1/y = 1/(x/(x - 2)) = (x - 2)/x = 1 - 2/x

Answer: B
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Re: If x > 2 and y = x/(x - 2), which of the following is equal to 1/y ? [#permalink]

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New post 15 Apr 2018, 04:20
Bunuel wrote:
If x > 2 and y = x/(x - 2), which of the following is equal to 1/y ?

A. 2 - 1/x

B. 1 - 2/x

C. 2/(x - 1)

D. -2/(x - 1)

E. 2x/(x - 1)


It is given that y=x/(x-2)

1/y=x-2/x
=(x/x)-(2/x)
=1-2/x
option B is the correct answer.
Re: If x > 2 and y = x/(x - 2), which of the following is equal to 1/y ?   [#permalink] 15 Apr 2018, 04:20
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If x > 2 and y = x/(x - 2), which of the following is equal to 1/y ?

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