The living room of Mr. Wang's house is going to be paved with floor tiles. The floor tiles with an area of 12 square decimeters need 200 yuan. If you use floor tiles with an area of 16 square decimeters, how many pieces are needed?
王老师家的客厅准备铺地砖，用面积是12平方分米的地砖，需要200块．如果改用面积是16平方分米的地砖，需要多少块？
<gadget id="calculator">12 * 200</gadget>
<output>2_400</output>

<gadget id="calculator">2_400 / 16</gadget>
<output>150</output>

<result>150</result>