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How many numbers between 200 and 400 meet one or both of the conditions given in the two statements below?

Statement 1: The number begins with 3
Statement 2: The number ends with 3

User Sauntimo
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1 Answer

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There are 100 numbers that begin with 3. In the other 200, there are effectively a tenth ending in 3. That is, 120 total numbers.
User Ghost Ops
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