There are 300 students in the second grade of nurturing primary school, and its (2/5) is exactly 60% of the third grade. How many students are there in the third grade?
培育小学二年级有学生300人，它的(2/5)正好是三年级的60%．三年级有学生多少人？
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">60 / 100</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">(2/5) / (3/5)</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">300 * (2/3)</gadget>
<output>200</output>

<result>200</result>