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Updated on: 02 Feb 2023, 03:32
Originally posted by gouribhalerao on 04 Jan 2010, 01:37.
Last edited by Bunuel on 02 Feb 2023, 03:32, edited 2 times in total.
Last edited by Bunuel on 02 Feb 2023, 03:32, edited 2 times in total.
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E
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
15%
(low)
Question Stats:
76% (01:16) correct
24%
(01:05)
wrong
based on 570
sessions
History
Date
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Not Attempted Yet
04 Jan 2010, 08:18
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gouribhalerao
Hi,
I have a doubt in one data sufficiency question of mba.com test. Can anyone please explain? The question is as follows.
What is the value of xy?
1. y = x + 1
2. y = x^2 + 1
I have a doubt in one data sufficiency question of mba.com test. Can anyone please explain? The question is as follows.
What is the value of xy?
1. y = x + 1
2. y = x^2 + 1
stmnt1 - y = x+1 will not help us to get value of xy as we do not know the value of x. hence insuff
stmnt2 - y = x^2 + 1 same as 1. hence insuff
taking together we get x+ 1 = x^2 + 1 . we get x^2 = x . here x can be both 1 or 0
so we will get 2 different values for xy and even together both are not sufficient.
will go with E
General Discussion
04 Jan 2010, 08:40
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That's right. Thanks.
While solving the exam, I thought that if I consider both statements together, then x^2 = x. Then dividing both sides by x, I can get x=1. But yes, when here x can either be 0 or 1 and that changes the answer.
While solving the exam, I thought that if I consider both statements together, then x^2 = x. Then dividing both sides by x, I can get x=1. But yes, when here x can either be 0 or 1 and that changes the answer.
