transport worker delivers 1,000 flower pots to a flower shop, and the shipping fee is 30 cents for one, and 50 cents for the damaged one. After shipping, the shipping fee is 260 yuan. How many flowerpots were damaged during the transportation.
某运输工为花店送花盆1000只，运一只可得运费3角，损坏一只要倒扣5角．运完后得运费260元，运输中损坏了多少花盆．
<gadget id="calculator">0.3 * 1_000</gadget>
<output>300</output>

<gadget id="calculator">300 - 260</gadget>
<output>40</output>

<gadget id="calculator">0.5 + 0.3</gadget>
<output>0.8</output>

<gadget id="calculator">40 / 0.8</gadget>
<output>50</output>

<result>50</result>