There are 8 teacups in a box, and the price of each teacup is 5 yuan. How much does it cost to buy 4 boxes of such teacups?
一个盒子有8个茶杯，每个茶杯售价是5元，买4盒这样的茶杯一共要多少元？
<gadget id="calculator">5 * 8 * 4</gadget>
<output>160</output>

<result>160</result>