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Suppose the seed of any positive integer n is defined as follows: Seed (n) = n, if n < 10 = seed(s(n)), otherwise, Where s(n) indicated the sum of digits of n. For example, seed(7)=7, seed(248) = 2+4+8 = seed(14) = seed(1+4) = seed(5) = 5, etc. How many positive integers n, such that n< 500, will have seed(n)=5? |
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Answer» Suppose the seed of any positive integer n is defined as follows: Seed (n) = n, if n < 10 = seed(s(n)), otherwise, Where s(n) indicated the sum of digits of n. For example, seed(7)=7, seed(248) = 2+4+8 = seed(14) = seed(1+4) = seed(5) = 5, etc. How many positive integers n, such that n< 500, will have seed(n)=5? |
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