A bag of chocolates is distributed to a certain group of children. Each person is 5 yuan, which is just finished; each person is divided into 6 yuan, which is 7 yuan less. How many pieces are there in this bag of chocolates?
一袋巧克力，分给某组的小朋友，每人5块，正好分完；每人分6块，就少7块，这袋巧克力共有多少块？
<gadget id="calculator">42 - 7</gadget>
<output>35</output>

<result>35</result>