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(D/S) The value of Z?

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pretttyune
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(D/S) The value of Z? [#permalink] New post   25 Nov 2007, 07:23
Please this, too..

Q) XZY is a three digit integer. If the production of each digit number(x*Z*Y)is 96, what is the value of Z?

1) This mumber is odd.
2) The hundreds digit of this number is 8.

Anybody Number Master? I really appreciate your helps..



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Re: (D/S) The value of Z? [#permalink] New post   25 Nov 2007, 07:57
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A.

96=3*2^5 therefore we have 3 and 4,8 (2 is not appropriate because 2^4 is not a digit.)

1. only 3. sufficient
2. z=3,y=4 or z=4,y=3 - insufficient.
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Re: (D/S) The value of Z? [#permalink] New post   26 Nov 2007, 03:27
You are totally right! I become clearly understand what A means thanks to your explanation, and definitely the right answer is thus A! Thank You!
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Re: (D/S) The value of Z? [#permalink] New post   26 Nov 2007, 06:00
I don't understand. It is asking for value of Z

x.z.y can either be 4.8.3 or 8.4.3

So

1) is not sufficient because z can be either 8 or 4
2) is not sufficient

together sufficient because 100 digit is now 8 so number is

8.4.3

Answer C..
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Re: (D/S) The value of Z? [#permalink] New post   26 Nov 2007, 06:33
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shubhampandey wrote:
Answer C..


:( I've read "This number is odd" as "Z is odd" but "number" means XZY.
You are right.
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Re: (D/S) The value of Z? [#permalink] New post   26 Nov 2007, 06:40
walker wrote:
shubhampandey wrote:
Answer C..


:( I've read "This number is odd" as "Z is odd" but "number" means XZY.
You are right.


But the given answer is A. I first agreed with your explanation.. ,in fact which was my first confusion of that "this number" means whether to be Z or the number XZY. Any other examples for this kind of question?
Then, I guess the given answer is wrong; should be C, right?



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Re: (D/S) The value of Z? [#permalink]
26 Nov 2007, 06:40
Moderator:
yashikaaggarwal
Senior Moderator - Masters Forum
3137 posts

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