Lele Store wants to buy a batch of dried noodles. The price of each tube of dried noodles is 3 yuan and 50 cents. It needs to buy 3 boxes of 25 tubes, which is 86.7 yuan more than the vermicelli purchased. How much did the purchased fans cost?
乐乐商店要购进一批挂面，每筒挂面的价格是3元5角，需要购进3箱，每箱25筒，比购进的粉丝多了86.7元．购进的粉丝花了多少钱？
<gadget id="calculator">5 / 10</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">3 + (1/2)</gadget>
<output>7/2 = around 3.5</output>

<gadget id="calculator">25 * 3 * (7/2)</gadget>
<output>525/2 = around 262.5</output>

<gadget id="calculator">(525/2) - 86.7</gadget>
<output>175.8</output>

<result>175.8</result>