The logistics company delivered rice to the supermarket, 4 times in the morning, 4.5 tons each time, and 6 times in the afternoon, with a total of 19 tons of rice. How many tons of rice did the logistics company deliver each time on average?
物流公司为超市送大米，上午送了4次，每次送4.5吨，下午送了6次，共送去大米19吨，物流公司平均每次送大米多少吨？
<gadget id="calculator">4.5 * 4</gadget>
<output>18</output>

<gadget id="calculator">18 + 19</gadget>
<output>37</output>

<gadget id="calculator">4 + 6</gadget>
<output>10</output>

<gadget id="calculator">37 / 10</gadget>
<output>37/10 = around 3.7</output>

<result>37/10 = around 3.7</result>