Need help with math problem...ANSWER in post #27

[McCord6]

I had to draw this one out and I came up with...
He started out on the 8th floor of a 15 floor building.


Get a piece of line paper out (best to use line paper)
Draw a line to show the middle floor,
Draw 4 dots above the line, then go down 3 dots, up 1 dot then down 9 dots (adding more dots if there isn't any dots left).
Now even out the number of dots below the line with the dots above.
That gives you the answer.

 

[HarlansHollowFarms]

Quote:
No you don't start at 0, you start in the middle.

I know, the middle would be 7. 14 floors total.

Ok, he gets on on 7...goes up 3, now he is on the 10th, goes down 4 to the 6th, then goes up1 bac to the 7th....how can he then go down 9 to the 1st?

 

[McCord6]

Quote:
LOL! I must of posted before you gave the answer or something! LOL! I didn't read everything!

 

[therealsilkiechick]

Quote:
that is exactly how i figured it out.

 

[chicks4kids]

Thank goodness when I get on an elevator, it has those little number thingy's that tell me what floor I'm on so noone else has to figure it out for me!!

OP, that was a good one...my daughter has had ?'s like that that my DH and I worked on and still got wrong....

 

[Suburban chick farmer 09]

Quote:
I know, the middle would be 7. 14 floors total.

Ok, he gets on on 7...goes up 3, now he is on the 10th, goes down 4 to the 6th, then goes up1 bac to the 7th....how can he then go down 9 to the 1st?

I know, she said she couldn't figure out the the teacher got the answer, so I tried to over think it. All you have to do is use tally marks. It's 15 floors.

 

[McCord6]

Quote:
that is exactly how i figured it out.

2 great minds think ALIKE! **5**

 

[Wildsky]

Ok so the building must start on GROUND then up to first floor where he got out...

Makes sense but very confusing question.... we could add a few levels of garage parking space below

 

[CoyoteMagic]

Draw pictures like I did, lol!! I have an AA in Math, and that's how I do it!

 

[Suburban chick farmer 09]

Quote:
I know, the middle would be 7. 14 floors total.

Ok, he gets on on 7...goes up 3, now he is on the 10th, goes down 4 to the 6th, then goes up1 bac to the 7th....how can he then go down 9 to the 1st?

Well, its up 4, down 3.