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Manager
Joined: 22 Feb 2006
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17 Jun 2009, 18:09
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Question Stats:

100% (03:08) correct 0% (00:00) wrong based on 2 sessions

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Q5:
If (y+3)(y-1) – (y-2)(y-1) = r(y-1), what is the value of y?
(1) r2 = 25
(2) r = 5

A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
D. EACH statement ALONE is sufficient.
E. Statements (1) and (2) TOGETHER are NOT sufficient.
Manager
Joined: 16 Apr 2009
Posts: 233
Schools: Ross
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18 Jun 2009, 07:32
Quote:
Q5:
If (y+3)(y-1) – (y-2)(y-1) = r(y-1), what is the value of y?
(1) r2 = 25
(2) r = 5

(y+3)(y-1) – (y-2)(y-1) ==>(y-1)((y+3)-(y-2))==>(y-1)(y+3-y+2)
(y-1)5=r(y-1)

Hence Both A and B alone are suff.

Hence D
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VP
Joined: 05 Jul 2008
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18 Jun 2009, 08:19
Seems to be a weird Q. Source Please?

You can actually derive r=5 from the given eq

2 does not add any thing

1 gives 2 more r values

Together also does not help. Hence E
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