Three people can make 15 machines in 5 days. At this speed, if 50 machines are to be completed in 10 days, how many people need to work together?
三个人5天能制作15台机器，以这样的速度，如果10天要完成50台机器，需要多少人一起工作？
<gadget id="calculator">15 / 5 / 3</gadget>
<output>1</output>

<gadget id="calculator">50 / 10 / 1</gadget>
<output>5</output>

<result>5</result>