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For all positive integers m, m = 3m when m is odd and m =

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Intern
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For all positive integers m, m = 3m when m is odd and m = [#permalink] New post 15 Jan 2008, 19:09
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

For all positive integers m, m = 3m when m is odd and m = 1/2m when m is even. Which of the following is equivalent to 9 X 6?

a. 81
b. 54
c. 36
d. 27
e. 18
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Re: GMATPREP question # 3 [#permalink] New post 15 Jan 2008, 19:20
hadi86 wrote:
For all positive integers m, m = 3m when m is odd and m = 1/2m when m is even. Which of the following is equivalent to 9 X 6?

a. 81
b. 54
c. 36
d. 27
e. 18


9 is odd so 9 =9*3=27
6 is even so 6 =6/2=3

answer =81
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Re: GMATPREP question # 3 [#permalink] New post 15 Jan 2008, 19:29
81, same approach as above
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Re: GMATPREP question # 3 [#permalink] New post 15 Jan 2008, 19:33
hadi86 wrote:
For all positive integers m, m = 3m when m is odd and m = 1/2m when m is even. Which of the following is equivalent to 9 X 6?

a. 81
b. 54
c. 36
d. 27
e. 18


I think ive seen this before. I think we are suppose to express the answer in _ thus D would be the answer.
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Re: GMATPREP question # 3 [#permalink] New post 15 Jan 2008, 20:13
the right answer is D, and i can't fully understand how they came up with that answer. I choose A like you guys, but it was wrong.
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Re: GMATPREP question # 3 [#permalink] New post 16 Jan 2008, 11:23
hadi86 wrote:
the right answer is D, and i can't fully understand how they came up with that answer. I choose A like you guys, but it was wrong.


I initially got D. If you have to express it in _ numbers than its 27. As 81 is a odd number
_81 =81/3=27
Re: GMATPREP question # 3   [#permalink] 16 Jan 2008, 11:23
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For all positive integers m, m = 3m when m is odd and m =

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