The school instrument band has 42 boys and 18 girls. The number of chorus is four times that of the instrumental band, and there are 110 boys in the chorus. Based on the above information, ask a mathematical problem and answer it.
学校器乐队有男生42人，女生18人．合唱队的人数是器乐队人数的4倍，合唱队有男生110人．根据上面信息，提一个数学问题并解答．
<gadget id="calculator">42 + 18</gadget>
<output>60</output>

<gadget id="calculator">60 * 4</gadget>
<output>240</output>

<gadget id="calculator">240 - 110</gadget>
<output>130</output>

<result>130</result>