The kindergarten made a total of 50 red and yellow flowers, of which safflowers accounted for 40%. Later, after making a few more red flowers, the number of red flowers and yellow flowers was exactly equal. How many red flowers were made later?
幼儿园做了红、黄花共50朵，其中红花占40%，后来又做了几朵红花后，这时红花和黄花的朵数正好相等，后来又做了多少朵红花？
<gadget id="calculator">40 / 100</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">1 - (2/5)</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">50 * (3/5)</gadget>
<output>30</output>

<gadget id="calculator">50 * (2/5)</gadget>
<output>20</output>

<gadget id="calculator">30 - 20</gadget>
<output>10</output>

<result>10</result>