A pesticide is prepared by mixing pesticide and water at a mass ratio of 1:50. If 510 kilograms of this pesticide is to be prepared, how many kilograms of pesticide are needed?
一种杀虫剂是由农药和水按1：50的质量比配制而成的，如果要配制这种杀虫剂510千克，需要农药多少千克？
<gadget id="calculator">1 + 50</gadget>
<output>51</output>

<gadget id="calculator">510 / 51</gadget>
<output>10</output>

<gadget id="calculator">10 * 1</gadget>
<output>10</output>

<result>10</result>