A bag of rice weighs 75 kilograms, and a bag of flour weighs 25 kilograms. How many bags of flour can a car with a load of 4.5 tons contain 30 bags of rice? (solution in two ways)
一袋大米重75千克，一袋面粉重25千克，一辆载重4.5吨的汽车，装上30袋大米后，还能装多少袋面粉？(用两种方法解)
<gadget id="calculator">4.5 * 1_000</gadget>
<output>4_500</output>

<gadget id="calculator">75 * 30</gadget>
<output>2_250</output>

<gadget id="calculator">4_500 - 2_250</gadget>
<output>2_250</output>

<gadget id="calculator">2_250 / 25</gadget>
<output>90</output>

<result>90</result>