What is the positive difference between the sum of the first 20 positive multiples of 5 and the sum of the first 20 positive, even integers?
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
What is the positive difference between the sum of the first 20 positive multiples of 5 and the sum of the first 20 positive, even integers?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
630
What is the positive difference between the sum of the first 20 positive multiples of 5 and the sum of the first 20 positive, even integers?
train