An engineering team has laid an underground cable, 200 meters have been laid, and 75% of it has not been laid. How many meters is this cable?
某工程队铺一条地下电缆，已经铺了200米，还剩75%没有铺．这条电缆长多少米？
<gadget id="calculator">75 / 100</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">1 - (3/4)</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">200 / (1/4)</gadget>
<output>800</output>

<result>800</result>