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Windows 7: Number Crunching

17 Oct 2009   #1
Dwarf

Windows 8.1 Pro RTM x64
 
 
Number Crunching

Here are a few number based puzzles for you.

Counting my thumbs as fingers, I have 11 fingers. How did I work that out?

4 - 1 = 5

11 / 2 = 6

10 + 1 = 9

4 * 2 = 9

12 / 2 = 7 (and 7 * 2 = 12)
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17 Oct 2009   #2
Dinesh

Windows® 8 Pro (64-bit)
 
 

Math puzzles are always out of my head.
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17 Oct 2009   #3
Tews

64-bit Windows 8.1 Pro
 
 

Quote   Quote: Originally Posted by Dwarf View Post
Here are a few number based puzzles for you.

Counting my thumbs as fingers, I have 11 fingers. How did I work that out?

4 - 1 = 5

11 / 2 = 6

10 + 1 = 9

4 * 2 = 9

12 / 2 = 7 (and 7 * 2 = 12)
Thats an easy one ... you lost one to a dwarf maiden during a particularly nice evening at the local pub....
My System SpecsSystem Spec
.

17 Oct 2009   #4
H2SO4

Win7x64
 
 

Since I don't get that one, I'll contribue a different puzzle:

a = 1
b = 1
a = a
a = b
ab = a^2
ab - b^2 = a^2 - b^2
b(a - b) = (a + b)(a - b)
b = (a + b)
1 = 1 + 1
1 = 2 <--- eh?

Where's the logic flaw?
My System SpecsSystem Spec
17 Oct 2009   #5
chuckr

XP_Pro, W7_7201, W7RC.vhd, SciLinux5.3, Fedora12, Fedora9_2x, OpenSolaris_09-06
 
 

Quote   Quote: Originally Posted by H2SO4 View Post
Since I don't get that one, I'll contribue a different puzzle:

a = 1
b = 1
a = a
a = b
ab = a^2
ab - b^2 = a^2 - b^2
b(a - b) = (a + b)(a - b)
b = (a + b)
1 = 1 + 1
1 = 2 <--- eh?

Where's the logic flaw?
Division by zero:

(a-b), both sides

?
My System SpecsSystem Spec
17 Oct 2009   #6
Barman58

Windows 10 Pro x64 x2 Windows 10 Enterprise x64, Ubuntu
 
 

For the original question

Count down the digits on left hand 10-9-8-7-6 then add the right hand

6 + 5 = 11
My System SpecsSystem Spec
17 Oct 2009   #7
Tews

64-bit Windows 8.1 Pro
 
 

Quote   Quote: Originally Posted by Barman58 View Post
For the original question

Count down the digits on left hand 10-9-8-7-6 then add the right hand

6 + 5 = 11
Smarty pants!!

j/k
My System SpecsSystem Spec
17 Oct 2009   #8
Dwarf

Windows 8.1 Pro RTM x64
 
 

For my other puzzles here, this is an indirect clue.

Complete the following well-known saying:

When in ???, do as the ??? do.
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17 Oct 2009   #9
Barman58

Windows 10 Pro x64 x2 Windows 10 Enterprise x64, Ubuntu
 
 

Ah I see now said the blind centurion
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17 Oct 2009   #10
Dwarf

Windows 8.1 Pro RTM x64
 
 

Was he waving his wooden leg in the air?
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