What is the positive difference between the sum of the first 20 positive even integers and the sum of the first 15 positive odd integers?
Question:
What is the positive difference between the sum of the first 20 positive even integers and the sum of the first 15 positive odd integers?
Answer:
Let's think step by step.

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What is the positive difference between the sum of the first 20 positive even integers and the sum of the first 15 positive odd integers?
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