It will cost 675 yuan for students to carry out comprehensive practical activities, and the school will allocate 540 yuan to us, and everyone will share the rest. If there are 45 students in our class, how much should each person prepare on average?
同学们进行综合实践活动，要花费675元，学校拨给我们540元，剩下的要大家分担，如果我们全班45人，那么平均每人要准备多少钱？
<gadget id="calculator">675 - 540</gadget>
<output>135</output>

<gadget id="calculator">135 / 45</gadget>
<output>3</output>

<result>3</result>