Divide the total volume by the number of bottles.<br><br>
&bull; Each bottle = 600 ÷ 800<br>
&bull; 600 ÷ 800 = \( \frac{600}{800} = \frac{6}{8} = \frac{3}{4} \)<br>
&bull; \( \frac{3}{4} \) = 0.75<br>
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Final Answer: 0.75