Last year, the per capita housing area in a certain city was 30 square meters. This year it is 20% more than last year. How many square meters is the housing area this year?
某市去年的人均住房面积是30平方米，今年比去年多了20%，今年的住房面积是多少平方米？
<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 + (1/5)</gadget>
<output>6/5 = around 1.2</output>

<gadget id="calculator">30 * (6/5)</gadget>
<output>36</output>

<result>36</result>