A pair of meshing gears, the driving wheel has 35 teeth, turns 100 revolutions per minute, and the driven wheel has 20 teeth, how many revolutions per minute?
一对互相咬合的齿轮，主动轮有35个齿，每分钟转100转，从动轮有20个齿，每分钟转多少转？
<gadget id="calculator">35 / 20</gadget>
<output>7/4 = around 1.75</output>

<gadget id="calculator">100 * (7/4)</gadget>
<output>175</output>

<result>175</result>