shopping mall offers a 20% discount on student supplies on Children's Day. How many pencils can you buy with the original price of 24 pencils?
某商场"六一"儿童节对学生用品进行8折优惠，用原来买24支铅笔的钱，现在可以买多少支．
<gadget id="calculator">80 / 100</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">24 / (4/5)</gadget>
<output>30</output>

<result>30</result>