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Re: For any numbers a and b, ab= a + b - ab. If ab=0, which of [#permalink]
05 Jul 2012, 23:55

Can someone pls edit the question.? i was wondering where i was going wrong thinking. question was ab=a+b-ab => 2ab=a+b. and then saw bunuel's reply then understood what the question was! _________________

Re: For any numbers a and b, ab= a + b - ab. If ab=0, which of [#permalink]
25 Jul 2012, 00:40

asax wrote:

Can someone pls edit the question.? i was wondering where i was going wrong thinking. question was ab=a+b-ab => 2ab=a+b. and then saw bunuel's reply then understood what the question was!

Even I got it wrong... _________________

I've failed over and over and over again in my life and that is why I succeed--Michael Jordan Kudos drives a person to better himself every single time. So Pls give it generously Wont give up till i hit a 700+

Re: For any numbers a and b, ab= a + b - ab. If ab=0, which of [#permalink]
11 Apr 2013, 03:59

asax wrote:

Can someone pls edit the question.? i was wondering where i was going wrong thinking. question was ab=a+b-ab => 2ab=a+b. and then saw bunuel's reply then understood what the question was!

Re: For any numbers a and b, ab= a + b - ab. If ab=0, which of [#permalink]
11 Apr 2013, 04:06

Expert's post

notsureifseriousor wrote:

asax wrote:

Can someone pls edit the question.? i was wondering where i was going wrong thinking. question was ab=a+b-ab => 2ab=a+b. and then saw bunuel's reply then understood what the question was!

Re: For any numbers a and b, a#b=a + b - ab. If a#b=0, which of [#permalink]
11 Apr 2013, 04:15

Stiv wrote:

For any numbers a and b, a#b=a + b - ab. If a#b=0, which of the following CANNOT be a value of b?

A. 2 B. 1 C. 0 D. -1 E. -3/2

------------------------------------------ for me the fastest way must be the use of answer choices to find the value of a if a will be an integer after putting the value of of b as given in the answer choices then the answer will be correct with no cumbersome calculations & its fast too ....!! _________________

If you don’t make mistakes, you’re not working hard. And Now that’s a Huge mistake.

Re: For any numbers a and b, a#b=a + b - ab. If a#b=0, which of [#permalink]
16 Jul 2014, 20:40

Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email. _________________

Hey everyone, today’s post focuses on the interview process. As I get ready for interviews at Kellogg and Tuck (and TheEngineerMBA ramps up for his HBS... ...