52 replies to this topic

[mudkip201]

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

By inverting 2 of the 4 - 7's

1 L7 L7

Ha Ha ! !

interesting solution

[mudkip201]

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

[aliasmask]

(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!

[carafate]

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

[plortylox]

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)

[plortylox]

might have another here

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

[poppaace]

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

[TySim]

177-77

or, since no one hit it yet

-77 + 177

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

[sunshipballoons]

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

100 - solution
100 = 177-77 = (7+7)x(7+(1:7))
I do not know other solutions.

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

[rookie1ja]

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