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November 23, 2014

November 23, 2014

Posted by **Kelly** on Monday, October 19, 2009 at 1:00pm.

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Of the three possible solutions, which numbers can be used in the middle circle of the horizontal row? Show each of the resulting solutions.

- Math -
**tchrwill**, Monday, October 19, 2009 at 2:15pmIf there are 3 vertical, and 3 horizontal, circles to be filled in using a set of given numbers only once, you would need 9 numbers.

For instance,

8..1..6

3..5..7

4..9..2

Can you clarify your problem statement of "...using each of the numbers once and only once...".

- Math -
**Kelly**, Monday, October 19, 2009 at 2:37pmNo, I am not sure.

The exact diagram looks like this

O O O

O

O

The circles are to be filled in with the numbers given.

The possible multiple choice answers given are:

A) 7, 8, and 9 B) 7, 9, and 11

C) 9, 10, and 11 D) 8, 9, and 10

- Math -
**tchrwill**, Monday, October 19, 2009 at 4:02pmI think I see what you are driving at now.

9.8.10

7

11

9.10.8

7

11

9.8.10

11

7

9.10.11

11

7

7.8.11

9

10 and the same variations as shown above.

11.7.10

8

9 and the variations.

- Math -
**Kelly**, Tuesday, October 20, 2009 at 11:48amI still don't understand?

Also the two verticle circles are actually under the second horizontal circle, not the first. For some reason it didn't post like that.

(I don't know if that makes a difference or not)

What I don't think I understand are the purpose of the circles, or maybe it is the purpose of the placement of the numbers (which is really the same thing)

I am sorry I am not grasping this.

- Math -
**Bell**, Wednesday, October 21, 2009 at 6:03pmThe circles are just there to show us where they want the numbers. 3 across and 3 down in the middle. Both numbers across and down the middle must equal the same number.

Follow tchrwill's examples and you will find it!

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