The area to be painted in the electric classroom is 120 square meters. If 0.6 liters of paint is needed per square meter, there will be a 10% loss in actual painting. How many liters of paint are needed in total?
电教室需要粉刷的面积为120平方米，如果每平方米需用涂料0.6升，在实际粉刷时有10%的损耗，共需涂料多少升？
<gadget id="calculator">120 * 0.6</gadget>
<output>72</output>

<gadget id="calculator">10 / 100</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">1 - (1/10)</gadget>
<output>9/10 = around 0.9</output>

<gadget id="calculator">72 / (9/10)</gadget>
<output>80</output>

<result>80</result>