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How many positive integers less than 25 can be formed by using the digits 1,2 and 3
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Jul 11, 2015
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How many positive integers less than 25 can be formed by using the digits 1,2 and 3
Mathematics
high-school
Nebojsa Nebojsa
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Nebojsa Nebojsa
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there are 9 numbers that are positive integers that can be formed by the #s 1,2,&3 THAT R LESS THAN 25 1 2 3 11 12 13 21 22 23
Bento
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Jul 13, 2015
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Bento
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I tried to think of a fancy formula for it, then decided it's just easier to list them:
1
2
3
11
12
13
21
22
23
That's
9
of them.
Matias Jurfest
answered
Jul 17, 2015
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Matias Jurfest
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