The weight of 2 Asian elephants is equivalent to the weight of 3 hippopotamuses. A hippopotamus weighs 40 tons. How many tons does an Asian elephant weigh?
2只亚洲象的重量相当于3只河马的重量，一只河马重40吨，一只亚洲象重多少吨？
<gadget id="calculator">3 / 2</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">40 * (3/2)</gadget>
<output>60</output>

<result>60</result>