The family of three squirrels went out to pick pine cones. The father squirrel picked the fastest. For every 7 pine cones he picked, the mother squirrel could only pick 6. The baby squirrel picked the slowest. For every 2 pine cones he picked, the mother squirrel had already picked 3 Pieces. At the end of the day, they picked a total of 340 pine cones. Just ask: How many of them are picked by baby squirrels?
松鼠一家三口出门采摘松果，松鼠爸爸采得最快，他每采摘7颗松果，松鼠妈妈只能采摘6颗；松鼠宝宝采得最慢，他每采摘2颗，松鼠妈妈已经采摘了3颗．一天下来，他们一共采摘了340颗松果．试问：其中有多少颗是松鼠宝宝采的？
<gadget id="calculator">7 + 6 + 4</gadget>
<output>17</output>

<gadget id="calculator">4 / 17</gadget>
<output>4/17 = around 0.235294</output>

<gadget id="calculator">340 * (4/17)</gadget>
<output>80</output>

<result>80</result>