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# If x is not equal to 1 and y = (1/x −1), then which one of the followi

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Senior Manager
Joined: 02 Jan 2017
Posts: 307
If x is not equal to 1 and y = (1/x −1), then which one of the followi  [#permalink]

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05 Mar 2017, 22:53
1
00:00

Difficulty:

5% (low)

Question Stats:

90% (01:02) correct 10% (01:18) wrong based on 44 sessions

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If x is not equal to 1 and y = 1/(x −1), then which one of the following cannot be the value of y ?

(A) 0

(B) 1

(C) 2

(D) 3

(E) 4
Senior Manager
Joined: 24 Apr 2016
Posts: 331
Re: If x is not equal to 1 and y = (1/x −1), then which one of the followi  [#permalink]

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05 Mar 2017, 23:27
Plugging in the first value from the first option

y=0 in the equation y = 1/(x −1) => 0 = 1/(x −1)

multiplying both sides by (x-1), we get

0 = 1, which is not possible. Hence Answer is A
Re: If x is not equal to 1 and y = (1/x −1), then which one of the followi &nbs [#permalink] 05 Mar 2017, 23:27
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