A volleyball is 40 yuan, the price of a basketball is 1.2 times that of a volleyball, and the price of a football is that of a basketball (5/8), how much is a football?
一个排球40元，一个篮球的价格是一个排球的1.2倍，一个足球的价格又是篮球的(5/8)，一个足球多少钱？
<gadget id="calculator">5 / 8</gadget>
<output>5/8 = around 0.625</output>

<gadget id="calculator">40 * 1.2 * (5/8)</gadget>
<output>30</output>

<result>30</result>