There are 324 students in our school this year, which is 10% less than last year. How many students were there last year?
我校今年有324名学生，今年比去年减少了10%．去年有学生多少名？
<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">324 / (9/10)</gadget>
<output>360</output>

<result>360</result>