#3
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Re: Simple storage problem (math)
Not quite, but you are on the right track.
Out of the integers between 7 and n, 1/2 are not divisible by 2, (1/2)(2/3) = 1/3 are not divisible by 2 or 3, and (1/2)(2/3)(4/5) = 4/15 are not divisible by 2, 3 or 5. That's not quite the ratio desired, but the answer should now be obvious. |
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