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100


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52 replies to this topic

#31 mudkip201

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Posted 03 February 2008 - 02:05 AM

Hi all,
I thought of a unique solution...

By inverting 2 of the 4 - 7's

1 L7 L7

Ha Ha ! !


interesting solution
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#32 mudkip201

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Posted 03 February 2008 - 02:09 AM

That's two 7's, two 2's, and two 1's...not four 7's and one 1.


since the puzzle says 1 twice, u r allowed to use 2 ones
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#33 aliasmask

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Posted 03 February 2008 - 11:32 PM

(7*7)+7+7+1 = 100

BTW, it's octal <!-- s:) --><!-- s:) -->


Yeah, I thought of 77/7/7 +1 base 8 = 100 and 77/1 + 7/7 = 100... which is the same thing in octal. Curse you computer science! :lol:
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#34 carafate

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Posted 05 February 2008 - 11:32 PM

Hi all,
I thought of a unique solution...

By inverting 2 of the 4 - 7's

1 L7 L7

Ha Ha ! !



This was the first solution I thought of.

The second was the 177-77=100
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#35 plortylox

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Posted 17 February 2008 - 11:36 PM

this would work if you can have indicies (which is a mathmatical symbol)

7^2+7^2+(7/7)+1

works for me
(the ^2 is squared btw)
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#36 plortylox

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Posted 17 February 2008 - 11:46 PM

might have another here :D

7^3= 343

343/(1+7/7)^2=343/4=85.75
85.75+7+7= 100 to 1 d.p.

so...
(7^3)/(1+7/7)^2+7+7
=100 to 1 d.p.
but thats 7 sevens :(
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#37 poppaace

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Posted 15 April 2008 - 02:06 AM

Yes, real simple......... ( (7x7) + (7x7) ) + 1 = 100
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#38 TySim

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Posted 18 April 2008 - 05:48 PM

177-77

or, since no one hit it yet

-77 + 177

Edited by TySim, 18 April 2008 - 05:55 PM.

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#39 sunshipballoons

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Posted 29 April 2008 - 06:56 PM

100 - Back to the Number Puzzles
Using four sevens (7) and a one (1) create the number 100. Except (Edit: In addition to) the five numerals you can use the usual mathematical operations +, -, x, :, root and brackets ().


Spoiler for Solution


The number 100 already exists. I can't create it.
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#40 rookie1ja

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Posted 30 April 2008 - 01:20 PM

The number 100 already exists. I can't create it.

thanks for your "valuable" input ... based on previous warnings (you obviously ignored them) and the basic rules (especially on nit-picking) - your account has been suspended
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