The oil production of Qingfeng Oilfield in October increased by 1/10 compared with that in September, exactly 20,000 tons more. How many tons of oil did this oil field produce in September and October?
庆丰油田十月份的产油量比九月份增产(1/10)，正好增产了2万吨，这个油田九、十月份共产油多少万吨？
<gadget id="calculator">1 / 10</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">2 / (1/10)</gadget>
<output>20</output>

<gadget id="calculator">20 + 2 + 20</gadget>
<output>42</output>

<result>42</result>