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Math and logic riddle thread
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↑  tothepoint  ↓




 
 
    
 

Post Wed, Oct 21 2020, 9:20 pm
Are you up for a new one?

You would like to use 2 wooden cubes to display the day of the month every day.

The dices are blank and you need to fill them in with digits 0-9 so that you will be able to make every combination date from 1-31.

On days that have single digit date, you will need to precede it with a 0, for example 01,02 etc.

How will you number the dices?

Good luck!
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↑  doodlesmom  ↓




 
 
    
 

Post Wed, Oct 21 2020, 9:30 pm
tothepoint wrote:
Are you up for a new one?

You would like to use 2 wooden cubes to display the day of the month every day.

The dices are blank and you need to fill them in with digits 0-9 so that you will be able to make every combination date from 1-31.

On days that have single digit date, you will need to precede it with a 0, for example 01,02 etc.

How will you number the dices?

Good luck!


Hidden: 

012678 the 6 can be a 9 as well
012345
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↑  tothepoint  ↓




 
 
    
 

Post Wed, Oct 21 2020, 9:42 pm
doodlesmom wrote:
Hidden: 

012678 the 6 can be a 9 as well
012345


That was quick!
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↑  SisterSix  ↓




 
 
    
 

Post Wed, Oct 21 2020, 9:56 pm
doodlesmom wrote:
Hidden: 

012678 the 6 can be a 9 as well
012345


You don’t need two zeroes so there’s even one “free” square
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↑  ChanieMommy  ↓




 
 
    
 

Post Wed, Oct 21 2020, 9:59 pm
tothepoint wrote:
Are you up for a new one?

You would like to use 2 wooden cubes to display the day of the month every day.

The dices are blank and you need to fill them in with digits 0-9 so that you will be able to make every combination date from 1-31.

On days that have single digit date, you will need to precede it with a 0, for example 01,02 etc.

How will you number the dices?

Good luck!


Hidden: 

one die: 0-1-2-3-4-5
one die: 0-1-2-7-8-9
You need either 6 or 9, because you can just place the cube upside down to switch form one to the other..
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↑  ExtraCredit  ↓




 
 
    
 

Post Wed, Oct 21 2020, 9:59 pm
tothepoint wrote:
Are you up for a new one?

You would like to use 2 wooden cubes to display the day of the month every day.

The dices are blank and you need to fill them in with digits 0-9 so that you will be able to make every combination date from 1-31.

On days that have single digit date, you will need to precede it with a 0, for example 01,02 etc.

How will you number the dices?

Good luck!
Hidden: 


0,1,2,3,4,5
0,1,2,6,7,8 (the 6 is both 6 & 9)?
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↑  ExtraCredit  ↓




 
 
    
 

Post Wed, Oct 21 2020, 10:01 pm
SisterSix wrote:
You don’t need two zeroes so there’s even one “free” square

Hidden: 

You do need both because all single digits are divided between both cubes
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↑  doodlesmom  ↓




 
 
    
 

Post Wed, Oct 21 2020, 10:02 pm
SisterSix wrote:
You don’t need two zeroes so there’s even one “free” square


You do need it
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↑  tothepoint  ↓




 
 
    
 

Post Wed, Oct 21 2020, 10:03 pm
SisterSix wrote:
You don’t need two zeroes so there’s even one “free” square


You will need a zero for the single digit numbers, hence the need to be on both dices
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↑  ExtraCredit  ↓




 
 
    
 

Post Wed, Oct 21 2020, 10:04 pm
I see we all got the same answer. Am I the only one who
Hidden: 

only chapped that 6 & 9 are interchangeable after I finished both cubes and found myself short with one square? Took me an extra few seconds
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↑  doodlesmom  ↓




 
 
    
 

Post Wed, Oct 21 2020, 10:06 pm
ExtraCredit wrote:
I see we all got the same answer. Am I the only one who
Hidden: 

only chapped that 6 & 9 are interchangeable after I finished both cubes and found myself short with one square? Took me an extra few seconds

Yes, but that was the perfect time to chap....I saw I had an extra digit and worked with it.
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↑  tothepoint  ↓




 
 
    
 

Post Wed, Oct 21 2020, 10:33 pm
You are planting 7 trees in your backyard. You want to plant it so that there will be 6 rows with 3 trees in each row.

The following diagram shows 4 rows. Two across, one down and one diagonal. Can you make 6?

@ @ @
@ @ @
@
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↑  ChanieMommy  ↓




 
 
    
 

Post Thu, Oct 22 2020, 7:57 am
tothepoint wrote:
You are planting 7 trees in your backyard. You want to plant it so that there will be 6 rows with 3 trees in each row.

The following diagram shows 4 rows. Two across, one down and one diagonal. Can you make 6?

@ @ @
@ @ @
@


I found a solution for 5, but not for 6...

Hidden: 

o o o
ooo
o
[spoil]
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↑  doodlesmom  ↓




 
 
    
 

Post Thu, Oct 22 2020, 10:14 am
ChanieMommy wrote:
I found a solution for 5, but not for 6...

Hidden: 

o o o
ooo
o


I also only found for 5 but differently.


Hidden: 


@ @ @
....@
@ @ @
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↑  tothepoint  ↓




 
 
    
 

Post Thu, Oct 22 2020, 10:23 am
There is a way to make 6. Not necessarily tricky just lots of trial & error. Let me know if you need a hint
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↑  doodlesmom  ↓




 
 
    
 

Post Thu, Oct 22 2020, 8:46 pm
A 10-volume encyclopedia ,labeled A thru J, sits on a bookshelf in an orderly fashion. Each volume contains 100 pages. A book worm starts at the first page of the first volume and worms it's way thru til the last page of the last volume. How many pages did the worm tunnel thru?
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↑  doodlesmom  ↓




 
 
    
 

Post Thu, Oct 22 2020, 9:11 pm
tothepoint wrote:
There is a way to make 6. Not necessarily tricky just lots of trial & error. Let me know if you need a hint


Hint please
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↑  ChanieMommy  ↓




 
 
    
 

Post Thu, Oct 22 2020, 9:14 pm
doodlesmom wrote:
A 10-volume encyclopedia ,labeled A thru J, sits on a bookshelf in an orderly fashion. Each volume contains 100 pages. A book worm starts at the first page of the first volume and worms it's way thru til the last page of the last volume. How many pages did the worm tunnel thru?


Hidden: 

800 pages?
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↑  doodlesmom  ↓




 
 
    
 

Post Thu, Oct 22 2020, 9:25 pm
ChanieMommy wrote:
Hidden: 

800 pages?

Almost
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↑  ChanieMommy  ↓




 
 
    
 

Post Thu, Oct 22 2020, 9:28 pm
doodlesmom wrote:
Almost


Hidden: 

802?
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