This 1.5-hectare field is planted with rapeseed in autumn, and about 50 kilograms of rapeseed is harvested per 100 square meters. Each kilogram of rapeseed is sold for 3 yuan. How much is the gross income?
这块1.5公顷的田秋季种油菜，每100平方米约收油菜籽50千克，每千克油菜籽卖3元，毛收人大约有多少元？
<gadget id="calculator">10_000 / 100</gadget>
<output>100</output>

<gadget id="calculator">1.5 * 100 * 50 * 3</gadget>
<output>22_500</output>

<result>22_500</result>