To make a set of 2.8 meters of cloth for students, because of the new decorations on the clothes, each suit uses 0.2 meters more cloth. How many sets can be made of the cloth used to make 450 sets of clothes?
做一套学生服用2.8米的布，由于服装上加了新的装饰，每套服装多用布0.2米，原来做450套衣服用的布，现在可以做多少套？
<gadget id="calculator">2.8 + 0.2</gadget>
<output>3</output>

<gadget id="calculator">450 / 3</gadget>
<output>150</output>

<gadget id="calculator">2.8 * 150</gadget>
<output>420</output>

<result>420</result>