In 10 hectares of wheat fields, the average yield of wheat per hectare is 7.5 tons. Based on the flour extraction rate of 85%, how many tons of flour can be ground from these wheat?
10公顷小麦田，平均每公顷收小麦7.5吨，按85%的出粉率计算，这些小麦可磨面粉多少吨？
<gadget id="calculator">85 / 100</gadget>
<output>17/20 = around 0.85</output>

<gadget id="calculator">10 * 7.5 * (17/20)</gadget>
<output>63.75</output>

<result>63.75</result>