A parallelogram orchard has a base of 15 meters and a height of 4 meters. If each fruit tree covers an area of 6 square meters, how many fruit trees can be planted in this orchard?
一个平行四边形果园，底为15米，高为4米．如果每棵果树占地6平方米，这个果园一共可以种多少棵果树？
<gadget id="calculator">15 * 4</gadget>
<output>60</output>

<gadget id="calculator">60 / 6</gadget>
<output>10</output>

<result>10</result>