How many positive integers less than $250$ are multiples of $5$, but not multiples of $10$?
Question:
How many positive integers less than $250$ are multiples of $5$, but not multiples of $10$?
Answer:
Let's think step by step.

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25
How many positive integers less than $250$ are multiples of $5$, but not multiples of $10$?
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