The garment factory shipped 500 meters of cloth, 275 meters were used to make adult clothes, and the rest of the cloth was used to make children's clothes. Each set of children's clothes used 3 meters of cloth. How many sets of children's clothes can be made?
服装厂运来500米的布，做大人衣服用去275米，剩下的布都做儿童服装，每套儿童服装用布3米，可以做多少套儿童服装？
<gadget id="calculator">500 - 275</gadget>
<output>225</output>

<gadget id="calculator">225 / 3</gadget>
<output>75</output>

<result>75</result>