A company wants to produce 540,000 mobile phones. The first 10 days will produce an average of 15,000 units per day, and the rest will be completed in 20 days. How many thousands of units will be produced on average per day?
某公司要生产54万部手机，前10天平均每天制造1.5万部，余下的要在20天完成，平均每天要制造多少万部？
<gadget id="calculator">1.5 * 10</gadget>
<output>15</output>

<gadget id="calculator">54 - 15</gadget>
<output>39</output>

<gadget id="calculator">39 / 20</gadget>
<output>39/20 = around 1.95</output>

<result>39/20 = around 1.95</result>