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Help needed - i dont understand why d is the wright answer.

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by Anurag@Gurome » Wed May 18, 2011 5:51 am
kipkipod wrote:Image
thank you
9 is odd, so square [9] = 3 * 9 = 27
6 is even , so square [6] = (1/2) * 6 = 3

Therefore, square [9] * square [6] = 27 * 3, note here 27 is odd so it is equal to square [27], by definition of [m] when m is odd.

The correct answer is D.
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by kipkipod » Wed May 18, 2011 5:58 am
thank you, i have realized that i ignored the fact that the options are in squares also...
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by Anurag@Gurome » Wed May 18, 2011 5:59 am
kipkipod wrote:thank you, i have realized that i ignored the fact that the options are in squares also...
yes that's right.
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by MI3 » Sat Jun 18, 2011 1:40 am
Hello Anurag,

Am sorry, but I don't follow the 'square' concept and don't get why the answer is not 81, would you mind breaking the explanation down further please?

Thank you,
M
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by MBA.Aspirant » Sat Jun 18, 2011 2:48 am
kipkipod wrote:Image
thank you
Since 9 is odd, square 9 = 3 *9 = 27

Since 6 is even, square 6 = 1/2 *6 = 3

so square 9 x square 6 = 27 x 3 = 81

since he's putting the answers in squares u gotta look for the answer equivalent to 81.

square 27 = 27 *3 = 81 <= Bingo!
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by stuffstuff » Sat Jun 18, 2011 7:45 am
162 is also an acceptable answer, is it not? (although irrelevent since it wasn't an option)
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by edvhou812 » Sat Jun 18, 2011 4:40 pm
I'm not getting why the answer is not 81 either.
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