*_ash_* Posted October 12, 2011 Share Posted October 12, 2011 This got me! , but I know it now , I was close, (and hate to admit it) but no cigar You will need either a scientific calculator, or mathematical brain (a mathematician will know it so shut it!). Here goes: You can play about with these numbers using all the buttons on your calculator. 1, 1, and 1. You need to make 24. (there are so many posters on here, so it's likely someone knows this, so if you have seen it before and know it, don't spoil it please!, just post that you know if you have to ) It's not a trick question as I thought it was, it's easily done (when you know how) example to get you started... (1+1=2, 2 cubed is 8, times the other 1 = 8 - wrong!, but you get the idea) Link to comment Share on other sites More sharing options...
cgksheff Posted October 12, 2011 Share Posted October 12, 2011 My calculator only has +. -. x, / & = buttons. Can I still do it? Link to comment Share on other sites More sharing options...
Longcol Posted October 12, 2011 Share Posted October 12, 2011 11+11+1+1? Link to comment Share on other sites More sharing options...
metalman Posted October 12, 2011 Share Posted October 12, 2011 I presume you're only allowed to use three ones though. Link to comment Share on other sites More sharing options...
RichJay Posted October 12, 2011 Share Posted October 12, 2011 I have a solution but it relies on using the 0 that is on the screen when I turn my calculator on. Is that allowed? Edit: Actually it doesn't give the correct answer - I was being an idiot. Link to comment Share on other sites More sharing options...
Longcol Posted October 12, 2011 Share Posted October 12, 2011 I presume you're only allowed to use three ones though. Ah, now I get it. Don't have a scientific calculator - I'd guess it's summat to do with binary or logs or similar then - not add ups, take aways, times by or share by. Link to comment Share on other sites More sharing options...
RichJay Posted October 12, 2011 Share Posted October 12, 2011 I have a solution but it relies on using the 0 that is on the screen when I turn my calculator on. Is that allowed? Edit: Actually it doesn't give the correct answer - I was being an idiot. I've now worked out how to do it a different way. Link to comment Share on other sites More sharing options...
chem1st Posted October 12, 2011 Share Posted October 12, 2011 [(1+1)^2]! I did it with two ones Link to comment Share on other sites More sharing options...
cgksheff Posted October 12, 2011 Share Posted October 12, 2011 If your calculator has the necessary functions you can do it using only two '1's. Link to comment Share on other sites More sharing options...
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