The caravan of love transported rice to the disaster area. Each car loaded 4 tons, and 30 cars were transported. The tons of rice transported accounted for 37.5% of the total. How many tons of this batch of rice were there?
爱心车队向灾区运送大米，每车装4吨，运了30车，运走大米的吨数占总数的37.5%，这批大米共有多少吨？
<gadget id="calculator">4 * 30</gadget>
<output>120</output>

<gadget id="calculator">37.5 / 100</gadget>
<output>0.375</output>

<gadget id="calculator">120 / 0.375</gadget>
<output>320</output>

<result>320</result>