The school's newly built student computer room has an area of 72 square meters, and 200 floor tiles of the same size are just enough to pave the ground. According to this calculation, the area of the teacher's computer room is 54 square meters, how many floor tiles are needed?
学校新建学生微机室有72平方米，选用同样大的地砖200块正好够铺地面．照这样计算，教师机房面积54平方米，需要这样地砖多少块？
<gadget id="calculator">72 / 200</gadget>
<output>9/25 = around 0.36</output>

<gadget id="calculator">54 / (9/25)</gadget>
<output>150</output>

<result>150</result>