With the same brick paving, 60 bricks are needed to pave 30 square meters. How many bricks are needed to pave 75 square meters?
有同样的砖铺地，铺30平方米需60块，如果铺75平方米需多少块？
<gadget id="calculator">30 / 60</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">75 / (1/2)</gadget>
<output>150</output>

<result>150</result>