How many integers can you form using the letters of the word "interchangeability"? Note: You can ignore spaces when forming numbers.
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asked Oct 9, 2019 at 0:06
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2$\begingroup$ What counts as a number, exactly? Do e and i count? What about g, the gravitational constant? $\endgroup$– Deusovi ♦Oct 9, 2019 at 2:36
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$\begingroup$ Sure let's include those too. $\endgroup$– Dmitry KamenetskyOct 9, 2019 at 2:43
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4$\begingroup$ Okay, then what counts exactly? There are lots of debatable things I could make - you need to precisely define what would count, or the puzzle has no objective answers. $\endgroup$– Deusovi ♦Oct 9, 2019 at 3:30
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$\begingroup$ You are right, it was too loose. I changed it to integers only. $\endgroup$– Dmitry KamenetskyOct 9, 2019 at 4:54
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$\begingroup$ I'm closing this question as off-topic because it is not a puzzle; it is simply a rote exercise. There is no intuitive leap required; no "figuring out". Anyone with a bit of time on their hands is guaranteed to find the solution. $\endgroup$– GentlePurpleRainOct 9, 2019 at 14:35
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1 Answer
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Eleven numbers: three, eight, nine, ten, thirteen, thirty, thirty-nine, eighty, eighty-nine, ninety, ninety-eight.
answered Oct 9, 2019 at 0:31