It is known that the area of a parallelogram is 300 square decimeters, if its base is reduced by 6 times and its height is enlarged by 5 times, what is its area in square decimeters
已知平行四边形的面积是300平方分米，如果它的底缩小6倍，高扩大5倍，那么它的面积为多少平方分米
<gadget id="calculator">300 / 6</gadget>
<output>50</output>

<gadget id="calculator">50 * 5</gadget>
<output>250</output>

<result>250</result>