riddle 5...solved by finn...riddle 6...solved by C_stripes...

[captnsim]

What row of numbers comes next in this series?


1
11
21
1211
111221
312211
13112221

[Finn]

1
11
21
1211
111221
312211
13112221

Next: 1113213211
(one one, one three...)
No google. 
My grandparents have a ton of books and the riddle ones were my favorite.

[captnsim]

You manufacture entrainment CDs for companies that sell self-improvement products. You are at the post office, with ten boxes of them ready to close up and ship out, but you have a problem. Nine of the boxes contain CDs that are designed to put the listener into an "a" or relaxing state, and one is full of Cds that are designed to put the user into a deeper "d" state, for deep sleep. They look identical, and you forgot to label them.

There is one difference, however. You remember that the "a" Cds weigh 13 grams, and because different CD "blanks were used, the "d" Cds weigh 15 grams. Unfortunately, you can't feel the difference in weight by lifting them.

The post office does have a scale. It costs one dollar each time you weigh something, though, and you want to keep your costs down. How do you use the scale as few times as possible to determine which are the "d" CDs?

[lisiecki1]

take one cd out of each box and weigh all 10 at once and note how much the weight changes as you remove them one by one.....cost $1

[Troy]

First, take a CD from each box and look at the CDs to see if the manufacturer put a part number on them. The oddball is the 'd'.
Total: $0

Otherwise...
Put a CD from each of the ten boxes into three stacks of three plus a single CD. Weigh each stack ($3). If they are the same then the single CD is the "d".
Total: $3

If the three stacks are different weights, split the heaviest stack and weigh each of the single CDs stopping once you find the 15g CD ($1-3).
Total: $4-6

Alternatively...
Put a CD from each of the ten boxes into two stacks of five CDs. Weigh each stack ($2). Set aside the lighter stack and split the heaviest stack into two stacks of two CDs and a single CD. Weigh the two bigger stacks ($2). If they are the same then the single CD is the "d".
Total: $4

If the two stacks are different weights, split the heaviest stack and weigh each of the single CDs stopping once you find the 15g CD ($1-2).
Total: $5-6

Troy

[captnsim]

Those are all good guesses... I'll give a hint...Their is a way to do this for a dollar, and tell which box it is...without a doubt...Also the scale is a instant read...one readout = one dollar...

[Finn]

Hmm. Is the scale a must use item?
Slip a post worker a dollar and have him put the cds into a computer. (better yet go to car and do it)
or
Attach a note saying "one of these boxes contains D-CDs".

I'm guessing neither or those are it. 

[captnsim]

Nope not it...But creative none the less...    

[captnsim]

Clue.....Step one....Number the boxes 1 thru 10....

#55

Hope this helps

[Troy]

Ha! I can do it for free...

the Post Office must weigh the boxes to determine postage owed.

Troy

[captnsim]

Ha Ha, This post office charges for that service...once you figure out how the clue above applies the rest will be easy...

[500hp_440]

Any body can tell difference in weight by picking them up, pick up all 10 1 or 2 at a time and take the heaviest or lightest (which ever D is) and weigh it, if your right you spend $1 if your not take all 10

[captnsim]

Did you read paragraph two???

[resq302]

Put all of the boxes on the scale.  Pull one off at a time and keep track of what ounce of weight gets removed from the scale.  Therefore, you are just subtracting the total amount of weight and it is never removing boxes or setting the scale back to zero.  Which ever box ends up weighing 15 grams is the box with the "d" cd's.

[captnsim]

If only it was that easy...1 dollar = 1 readout. Take anything off and you need to put in another dollar...You have part of it figured out...This can be done...with one dollar and no funny stuff.

[Troy]

Did you read paragraph two???

Are you kidding? Read? What nonsense is this?

Troy

[captnsim]

You manufacture entrainment CDs for companies that sell self-improvement products. You are at the post office, with ten boxes of them ready to close up and ship out, but you have a problem. Nine of the boxes contain CDs that are designed to put the listener into an "a" or relaxing state, and one is full of Cds that are designed to put the user into a deeper "d" state, for deep sleep. They look identical, and you forgot to label them.

There is one difference, however. You remember that the "a" Cds weigh 13 grams, and because different CD "blanks were used, the "d" Cds weigh 15 grams. Unfortunately, you can't feel the difference in weight by lifting them.

The post office does have a scale. It costs one dollar each time you weigh something, though, and you want to keep your costs down. How do you use the scale as few times as possible to determine which are the "d" CDs?

500hp stated you could feel the differance by picking them up...

[C_stripes]

Did you read paragraph two???

Are you kidding? Read? What nonsense is this?

Troy

lmao.  Some people are to cool to read. ...or spell.  

I know, sometimes I don't spell perfectly. Who does 100%?

Who can feel the difference in a few grams?  No one I have ever met. That's very little weight.

I have been trying to figure this out and I can't see how it could be done unless you broke down the boxes into two sets of five, then you break the heaviest down to two of two and hope that one of the stacks of two. If they both are the same, the one that was left off is the case in question. If one weighs more. Then separate those two and weigh individually. Your cost would be between four and five dollars that way.

Where are you getting all of these captnsim?

[Troy]

You manufacture entrainment CDs for companies that sell self-improvement products. You are at the post office, with ten boxes of them ready to close up and ship out, but you have a problem. Nine of the boxes contain CDs that are designed to put the listener into an "a" or relaxing state, and one is full of Cds that are designed to put the user into a deeper "d" state, for deep sleep. They look identical, and you forgot to label them.

There is one difference, however. You remember that the "a" Cds weigh 13 grams, and because different CD "blanks were used, the "d" Cds weigh 15 grams. Unfortunately, you can't feel the difference in weight by lifting them.

The post office does have a scale. It costs one dollar each time you weigh something, though, and you want to keep your costs down. How do you use the scale as few times as possible to determine which are the "d" CDs?

500hp stated you could feel the differance by picking them up...

I was poking fun at the youngster.

Troy

[69CoronetRT]

 

[captnsim]

I will never tell...This one is a bit devilish...  55 is a amount...

[Finn]

Hang on, do the CDs weigh w/e the amount was or is that the box they are in?

[Troy]

That's 2 grams per cd. The boxes are "full of CDs" so 100 CDs would be about 1/2 pound difference per box.

You sure I didn't answer this already but by weighing individual CDs instead of whole boxes? (Split into 5, then 2, then 1?) Boxes could have packing material and other weight differences but the CDs are a known weight.

55 is the total of all the numbers written on the boxes.

Troy

[captnsim]

My bodyman can tell difference in weight by picking them up, pick up all 10 1 or 2 at a time and take the heaviest or lightest (which ever D is) and weigh it, if he is right ( he always is) you spend $1 if he is not take all 10

I fix for him...But he still wrong
Box is not a factor...

[Troy]

Aw, dang!

Ok, I got it but I cheated so I won't answer.

Troy