Pie, the maximum i can get is 10...

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Director

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Pie, the maximum i can get is 10... [#permalink]

12 Sep 2007, 15:14

can u please draw, or explain?
Thank you.

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Director

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12 Sep 2007, 15:23

not sure if I did it right so please confirm the answer. edit: I get 11.

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Director

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[#permalink]

12 Sep 2007, 15:27

beckee529 wrote:

not sure if I did it right so please confirm the answer. I get 10.

That is what i keep getting, though the asnwer is greater than 10 number.

thanks for drawing.

Director

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12 Sep 2007, 15:28

beckee529 wrote:

not sure if I did it right so please confirm the answer. edit: I get 11.

I see now! It is 11.

Thank you!

Director

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12 Sep 2007, 15:32

beckee529 wrote:

not sure if I did it right so please confirm the answer. edit: I get 11.

Did u follow any guidelines for drawig maximum pieces with given number of lines?

I am just wondering wat i wud do if i get this kind of question on Gmat... :roll:

Director

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12 Sep 2007, 18:50

IrinaOK wrote:

beckee529 wrote:

not sure if I did it right so please confirm the answer. edit: I get 11.

Did u follow any guidelines for drawig maximum pieces with given number of lines?

I am just wondering wat i wud do if i get this kind of question on Gmat... :roll:

Hi Irina,

Honestly it was trial and error. I might have picked 10 on the actual test under the pressure and limited time!! =\ But to answer your question, what I did here after I drew the two lines (pretty straightforward, you'll always have four pieces), manipulating to where it would cross the most number of segments as possible. For the third line, I had it cross three out of the four segments so 4 (first two lines) + 3 (third line) = 7. Then when I drew the fourth line, I had it intersect mostly with my third line to generate 4 more lines to make it 11. Not sure if that answered your question but its the best I can explain! I wonder if there are any formulas that can help us with this type of question. Otherwise drawing a diagram is the only way to go...

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12 Sep 2007, 23:39

There actually is a pattern

0 lines = 1 region
1 line = 2 regions
2 lines = 4 regions
3 lines = 7 regions
4 lines = 11 regions

I'm assuming 5 lines = 16 regions

This pattern is based on observation not logic. I'm sure there is a logical reasoning to it that makes sense though.

[#permalink] 12 Sep 2007, 23:39

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Pie, the maximum i can get is 10...

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Pie, the maximum i can get is 10...

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