If a tractor cultivates 11.25 hectares in 2.5 hours, how many hectares can it cultivate in 6.5 hours?
一台拖拉机2.5小时耕地11.25公顷，6.5小时可以耕地多少公顷．
<gadget id="calculator">11.25 / 2.5</gadget>
<output>4.5</output>

<gadget id="calculator">4.5 * 6.5</gadget>
<output>29.25</output>

<result>29.25</result>