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If you write down the numbers 1 through 111, how many times have you written the number 1?

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If you write down the numbers 1 through 111, how...

Math riddle. I think the answer would be 1.

solving equations

asked Sep 8, 2013 in Other Math Topics by Maura

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3 Answers

Try 18

answered Sep 8, 2013 by Marybeth

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It's 36. The numbers are: 1 10 11 (appears twice) 12 13 14 15 16 17 18 19 21 31 41 51 61 71 81 91 100 101 (appears twice) 102 103 104 105 106 107 108 109 110 (appears twice) 111 (appears three times).

answered Sep 8, 2013 by anonymous

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BTW, the quiz hour is a scam. Don't bother calling in.

answered Sep 8, 2013 by anonymous

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