760kg of wheat with a moisture content of 20% was shipped from the grain depot. After drying, the moisture content was found to have dropped to 5%. How much does the wheat weigh at this time?
粮库运来760kg含水率20%的小麦，烘干后发现含水率下降到5%，这时这些小麦重多少kg．
<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 - (1/5)</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">760 * (4/5)</gadget>
<output>608</output>

<gadget id="calculator">5 / 100</gadget>
<output>1/20 = around 0.05</output>

<gadget id="calculator">1 - (1/20)</gadget>
<output>19/20 = around 0.95</output>

<gadget id="calculator">608 / (19/20)</gadget>
<output>640</output>

<result>640</result>