The ratio of color TV sets to digital TV sets produced by a TV factory in May is 5:4. There are 2,500 color TV sets in production now. How many digital TV sets are produced? (Solve with ratio)
一个电视机厂五月份生产的彩色电视机与数码电视机的比是5：4，现生产的彩色电视机有2500台，生产的数码电视机有多少台？(用比例解)
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">2_500 * (4/5)</gadget>
<output>2_000</output>

<result>2_000</result>