There are 25 groups, and each group planted 4 trees. It cost 1,900 yuan to buy saplings. How much is each sapling?
有25个小组，每个小组栽了4棵树，买树苗花了1900元，每棵树苗多少元钱？
<gadget id="calculator">25 * 4</gadget>
<output>100</output>

<gadget id="calculator">1_900 / 100</gadget>
<output>19</output>

<result>19</result>