Tie the gift box with a ribbon. It takes 75 centimeters to bundle a gift box, and 200 centimeters remain after bundling 4 identical gift boxes. How long is this ribbon originally?
用一根彩带捆扎礼品盒．捆扎一个礼品盒用去75厘米，捆扎4个同样的礼品盒后还剩200厘米．这根彩带原来长多少米？
<gadget id="calculator">75 * 4</gadget>
<output>300</output>

<gadget id="calculator">300 + 200</gadget>
<output>500</output>

<gadget id="calculator">500 / 100</gadget>
<output>5</output>

<result>5</result>