There are 150 kilograms of cucumbers in the vegetable market. The ratio of the weight of cucumbers to the weight of tomatoes is 3:5. How much is the weight of cucumbers less than that of tomatoes?
菜市场有黄瓜150千克，黄瓜重量和西红柿重量的比是3：5，黄瓜重量比西红柿少多少千克．
<gadget id="calculator">150 / 3</gadget>
<output>50</output>

<gadget id="calculator">50 * 5</gadget>
<output>250</output>

<gadget id="calculator">250 - 150</gadget>
<output>100</output>

<result>100</result>