There are 42 boys in a certain elementary school, and the number of girls is 3 times more than the number of boys. How many people are there in this school?
某小学有男生42名，女生人数是男生人数的2倍多3名，问这个学校有多少人？
<gadget id="calculator">42 * 2</gadget>
<output>84</output>

<gadget id="calculator">84 + 3 + 42</gadget>
<output>129</output>

<result>129</result>