Girls plant 20 trees, and boys plant more trees than girls (1/4). How many more trees do boys plant than girls?
女生植树20棵，男生比女生植树的棵树多(1/4)．男生比女生多植树多少棵？
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">20 * (1/4)</gadget>
<output>5</output>

<result>5</result>