A triangular orchard has a base of 80 meters and a height of 30 meters. If each fruit tree covers an area of 3 square meters, how many fruit trees can be planted in this land?
一块三角形的果园，它的底是80米，高是30米，如果每棵果树占地3平方米，这块地一共可栽果树多少棵？
<gadget id="calculator">30 / 2 / 3</gadget>
<output>5</output>

<gadget id="calculator">80 * 5</gadget>
<output>400</output>

<result>400</result>