If a room is paved with square bricks with an area of 16 decimeters, at least 150 pieces are needed. If it is paved with square bricks with a side length of 5 decimeters, how many pieces are needed at least? (Answer with proportional knowledge)
一个房间铺地砖，如果用面积为16平方分米的方砖铺至少需150块，如果改用边长为5分米的方砖铺，至少需要多少块？(用比例知识解答)
<gadget id="calculator">150 * 16</gadget>
<output>2_400</output>

<gadget id="calculator">5 * 5</gadget>
<output>25</output>

<gadget id="calculator">2_400 / 25</gadget>
<output>96</output>

<result>96</result>