The sporting goods store sells basketballs at a 20% discount. Teacher Zhang went to buy such basketballs. With the money prepared at the original price, he bought 40 basketballs. How many basketballs could he buy?
体育用品商店把篮球打8折出售，张老师去买这样的篮球，按原价准备的钱现在买了40只，原来可以买多少只．
<gadget id="calculator">80 / 100</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">(4/5) * 40</gadget>
<output>32</output>

<gadget id="calculator">32 / 1</gadget>
<output>32</output>

<result>32</result>