A person climbs to the top of a mountain at a rate of 1.5 kilometers per hour and down the same way at a rate of 4.5 kilometers per hour. If he is gone for 6 hours, how far did he travel from the camp to the top of the mountain? Your answer should have exactly 3 paragraphs. Make sure that the last paragraph starts with the word "mind" and that each paragraph is separated by two new lines.
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