A wholesale and retail stationery store stipulates that if you buy more than 300 pencils (excluding 300), you can pay at the wholesale price; if you buy less than 300 (including 300), you can only pay at the retail price. Xiao Ming comes to the store to buy pencils. If he buys one pencil for each of the sixth graders in the school, he can only pay at the retail price, which costs 120 yuan; if he buys 60 more pencils, he can pay at the wholesale price, which also costs 120 yuan. If buying 6 sticks at the wholesale price is the same as buying 5 sticks at the retail price, how many sixth grade students are there in this school?
一个批发兼零售的文具店规定：凡一次购买铅笔300枝以上(不包括300枝)，可以按批发价付款；购买300枝以下(包含300枝)只能按零售价付款．小明来该商店买铅笔，如果给学校六年级同学每人买1枝，那么只能按零售价付款，需要120元；如果多买60枝，那么可以按批发价付款，同样需要120元．若按批发价购买6枝与按零售价买5枝的款相同，那么这个学校六年级的学生有多少人人．
<gadget id="calculator">120 * 5 * 60</gadget>
<output>36_000</output>

<gadget id="calculator">120 * 6</gadget>
<output>720</output>

<gadget id="calculator">120 * 5</gadget>
<output>600</output>

<gadget id="calculator">720 - 600</gadget>
<output>120</output>

<gadget id="calculator">36_000 / 120</gadget>
<output>300</output>

<result>300</result>