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| The hundreds' digit (Posted on 2016-02-22) |
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For the four-digit number ABCD (a string, not a product), where A,B,C, and D all represent distinct digits, find the value of B, given ABCD rounded to the nearest hundred is CD00.
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Submitted by Ady TZIDON
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Solution:
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B=9 D=0 C>4 A=C-1
i.e. 4950, 5960, 6970, 7980. |
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